Part A: The theoretical probability of a fair coin landing on heads is 1/2.
Part B: The frequency of getting Heads is 12 and the frequency of getting tails is 13.
Part C: The experimental probability of landing on heads is 0.48
Part D: The theoretical probability is higher than the experimental probability.
What is probability?
Simply put, the probability is the likelihood that something will occur. When we don't know how an event will turn out, we can discuss the likelihood or likelihood of various outcomes. Statistics is the study of events that follow a probability distribution.
A coin has two faces. One is head and other is tails.
If flip a coin, the outcome is {H,T}
The number of total outcomes is 2.
The number of frequency-getting heads is 1.
The number of frequency-getting tails is 1.
The theoretical probability of a fair coin landing on heads is 1/2.
Now flip a coin 25 times
The outcomes are
H,T,T,T, H,H,H, T,T,T, T,H,T, H,T,H,T,T, T, H, T, H,H,H,H
The frequency of getting Heads is 12 and the frequency of getting tails is 13.
The experimental probability of landing on heads is 12/25 = 0.48.
The theoretical probability is not the same as the experimental probability.
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Answer:
Part A: The theoretical probability of a fair coin landing on heads is 1/2.
Part B: The frequency of getting Heads is 12 and the frequency of getting tails is 13.
Part C: The experimental probability of landing on heads is 0.48
Part D: The theoretical probability is higher than the experimental probability.
Step-by-step explanation:
square root of 88 simplifying radicals
Answer:
[tex]2\sqrt{22}[/tex]
Step-by-step explanation:
Every morning, I employ a random metlod to choose between eating granola, cereal, or an English muffin. But these three brenk fast outcomes are not equally likely: I pick the English mullin twice as often as I pick granola, and I pick the English muffin three times as often as I pick cereal. What is the probability that I cat an English muffin for breakfast? (A) 1/11 (B) 6/11 (C) 1/3 (D) 1/6 (E) None of the above Answer:
6/11 is the probability that I cat an English muffin for breakfast.
Let G, C, and E represent the events of selecting granola, cereal, and an English muffin, respectively.
Let P(G), P(C), and P(E) represent the probabilities of selecting granola, cereal, and an English muffin, respectively.
We are given that:
P(E) = 2P(G) (the English muffin is selected twice as often as the granola)
P(E) = 3P(C) (the English muffin is selected three times as often as the cereal)
We can use these relationships to solve for P(G), P(C), and P(E):
P(G) = P(E)/2
P(C) = P(E)/3
P(G) + P(C) + P(E) = 1
Substituting the first two equations into the third equation and solving for P(E), we get:
P(E)/2 + P(E)/3 + P(E) = 1
11P(E)/6 = 1
P(E) = 6/11
Therefore, the probability that an English muffin is selected for breakfast is 6/11.
Hence, option (B) is the correct choice.
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Write an expression that is equivalent to -5+6a+(-8)+(-3a)
Answer:
-5+6a-8-3a
=6a-3a-5-8
=3a-13
Two cards are drawn from a shuffled deck of 52 cards. whats the probbility that both cards are kings if the first card isnt replaced after itsw drawn and is a king?
The probability of both cards are kings and first card isn't replaced after it's drawn and is a king is 0.00452
"Information available from the question"
Two cards are drawn from a shuffled deck of 52 cards.
To find the probability that both cards are kings if the first card isn't replaced after it's drawn and is a king.
Now, According to the question:
The probability that the first card of a king is [tex]\frac{4}{52}[/tex] = [tex]\frac{1}{13}[/tex]
If you do not replace the card, there are only 51 cards left and only 3 kings left, so the probability of now drawing a king is [tex]\frac{3}{51}[/tex]
Multiply these probabilities:
[tex]\frac{4}{52}[/tex] × [tex]\frac{3}{51}[/tex] = 0.00452
Hence, The probability is 0.00452
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Classify the following data. Indicate whether the data is qualitative or quantitative, indicate whether the data is discrete, continuous, or neither, and indicate the level of measurement for the data. You order a pizza. The kind of pizza you order is recorded by entering the appropriate number on an order form. The numbers used are given below. 1) Pepperoni 2) Mushroom 3) Black Olive Are these data qualitative or quantitative? -Qualitative -Quantitative Are these data discrete or continuous? -Discrete -Continuous -Neither What is the highest level of measurement the data possesses? -Nominal -Ordinal -Interval
- Ratio
The data is qualitative, discrete, and at the nominal level of measurement.
How to classify data?The data is qualitative, as it describes the type of pizza ordered, which cannot be measured numerically.
The data is discrete, because there are only a finite number of possible values that the variable can take on, which in this case is one of the three types of pizza: Pepperoni, "Mushroom, or Black Olive.
The highest level of measurement for this data is nominal, because the numbers used to record the type of pizza do not imply any order or ranking between the categories. The numbers are simply a code to identify which type of pizza was ordered, and do not have any intrinsic numerical value or relationship between them. Therefore, the data falls into the nominal level of measurement, which is the lowest level of measurement that data can have.
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The boxplots shown below summarize two data sets, I and II. Based on the boxplots, which of the following statements about these two data sets CANNOT be justified? a) The median of data set I is equal to the median of data set II b) o The interquartile range of data set l is equal to the interquartile range of data set 1. c) The range of data set I is greater than the range of data set II d) Data set I and data set II have the same number of data points. Review Later
The boxplots below summarize two data sets, I and II so Data set I and data set II have the same number of data points. so potion D.
The distribution of data is shown using a boxplot, which is a standardised method based on a five-number summary ("minimum," first quartile ("Q1"), median ("Q3"), and "maximum"). It can reveal information about your outliers' values. Boxplots can also show you how tightly your data is grouped, whether or not your data is skewed, and whether or not your data is symmetrical.
A box plot is a graph that displays information from a five-number summary that includes one of the central tendency measures. It does not clearly depict the distribution as a stem and leaf plot or histogram does. However it is mostly used to show whether a distribution is skewed or not and whether there are any potential outliers—unusual observations—in the data collection. When comparing or involving numerous data sets, boxplots are also highly helpful.
We can't make the conclusion from the given boxplots whether Data set I and Data set II have the same number of data points or not.
Hence,
Option D is correct.
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Complete question:
The boxplots shown below summarize two data sets, I and II. Based on the boxplots, which of the following statements about these two data sets CANNOT be justified? a) The median of data set I is equal to the median of data set II b) o The interquartile range of data set l is equal to the interquartile range of data set 1. c) The range of data set I is greater than the range of data set II d) Data set I and data set II have the same number of data points.
A company makes two models of television.
Model A has a rectangular screen that measures 44cm by 32cm.
Model B has a larger screen with these measurements increased in the ratio 5:4
a)work out the measurements of a larger screen.
b)find the fraction model A screen area÷model B screen area in its simplest form.
If a company makes two models of television.
a The measurements of the larger screen are 55cm by 40cm.
b. The fraction of Model A screen area compared to Model B screen area in its simplest form is 11/17.
How to find the measurements of the larger screen?a) Model B has a screen that is 5:4 larger than Model A, so if the width of Model A is 44cm,
The width of Model B is:
44cm * 5/4 = 55cm
The height of Model B is:
32cm * 5/4 = 40cm.
So, the measurements of the larger screen are 55cm by 40cm.
b) The area of Model A is:
44cm * 32cm = 1408cm²
The area of Model B is:
55cm * 40cm = 2200cm²
So, the fraction of Model A screen area compared to Model B screen area is: 1408cm² / 2200cm².
To simplify this fraction, we can divide both the numerator and denominator by their greatest common factor, which is 128:
(1408cm² / 128) / (2200cm² / 128) = 11 / 17
So, the fraction of Model A screen area compared to Model B screen area in its simplest form is 11/17.
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Quadratic Functions
Instruction Active
TRY IT Finding the Zeroes of a Quadratic Function
-2
-1
0
1
2
a = -2
b=0
c=2
f(x)=x²+x+6
X
0
X
6
X 4
a
4
b
6
с
The axis of symmetry is
x x=-1
x x=0
✓
x = ½
COMPLETE
The smaller zero is
The larger zero is
DONE
The zeroes of the quadratic function f(x) = -2x² + 2 is -1 and +1 and the axis symmetry is x = 0.
What are Quadratic Functions?Quadratic functions are polynomial functions consisting of variables and exponents and the degree of the variable is 2.
The general form of a quadratic function is f(x) = ax² + b x + c.
Given that,
a = -2, b = 0 and c = 2.
Substituting in the standard form, we get the quadratic function as,
f(x) = -2x² + 2
Let f(x) = 0.
-2x² + 2 = 0
-2x² = -2
x² = 1
x = ±1
So the two roots are +1 and -1.
Axis of symmetry is x = (1 + -1) / 2 = 0
x = 0 is the axis symmetry
The smaller zero is -1 and the larger zero is 1.
Hence -1 and +1 are the zeroes of the quadratic function f(x) = -2x² + 2 and the axis symmetry is x = 0.
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-------------------------------------------------------------------- ?
Answer: 12537 -----13%
6290-----9%
suppose you have another picture that is 10 inches by 5 inches, and are now using a fancy paper that is 8.5 inches by 4 inches to frame the picture. again, the frame is to be uniform in thickness all the way around. no fancy framing paper is to be wasted!
The thickness of the framing paper used to frame the picture with uniform thickness will be 1.13 inches.
First, we have to find the perimeter of the picture. We know that the perimeter of a rectangle is 2(length + breadth). So, The perimeter of the picture will be :
⇒ 2(10 + 5)
⇒30 inches
Now, finding the area of the framing paper :
⇒ length x breadth
⇒ 8.5 x 4
⇒ 34 inch²
Now, we know that thickness x perimeter = area
∴ Thickness = area / perimeter
⇒ 34 / 30
⇒ 1.13 inch
Therefore, the thickness needed to frame the picture with uniform thickness using the fancy paper without wasting any paper is 1.13 inch.
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The complete question will be :
suppose you have another picture that is 10 inches by 5 inches, and are now using a fancy paper that is 8.5 inches by 4 inches to frame the picture. again, the frame is to be uniform in thickness all the way around. no fancy framing paper is to be wasted! Find out how thick the frame should be.
A batch of 140 semiconductor chips is inspected by choosing a sample of 5 chips. Assume 10 of the chips do not conform to customer requirements. Round your answers to the nearest integer.
a. How many different samples are possible?
b. How many samples of 5 contain exactly one nonconforming chip?
c. How many samples of 5 contain at least one nonconforming chip?
a.There are 2,268,760 different samples possible, b.The number of samples of 5 containing exactly 1 nonconforming chip is 4,311, c.The number of samples, 5 containing atleast 1 nonconforming chip is 8,002.
a. To calculate the number of different samples possible, we need to use the combination formula nCr, where n is the total number of chips and r is the size of the sample. In this case, n = 140 and r = 5. So the number of different samples possible is 140C5 = 2,268,760.
b. To calculate the number of samples of 5 containing exactly one nonconforming chip, we need to use the formula (n-1)Cr + (n-2)C(r-1). In this case, n = 10 and r = 5. So the number of samples of 5 containing exactly one nonconforming chip is (10-1)C5 + (10-2)C(5-1) = 4,311.
c. To calculate the number of samples of 5 containing at least one nonconforming chip, we need to use the formula nCr + (n-1)Cr + (n-2)C(r-1). In this case, n = 10 and r = 5. So the number of samples of 5 containing at least one nonconforming chip is 10C5 + (10-1)C5 + (10-2)C(5-1) = 8,002.
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Select the correct answer from each drop-down menu.
The graph represents the complex numbers z₁ and z2. What are their conjugates?
The conjugates of z1 and z2 are given below:
• z1* = 7-2i• z2* = -3+iWhat is a Conjugate?In mathematics, a pair of binomials with identical phrases that part opposite arithmetic operators in the midst of these similar terms are referred to as conjugates.
For instance, the conjugate of p + q is p - q.
'
With this in mind, the conjugate which is the same number with the imaginary part negated is given as:
The conjugate of 7+2i is 7-2i;
the conjugate of -3-i is -3+i.
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All races are more than 175 miles.
True
False
Answer:
False,
Step-by-step explanation:
There is not enough information given.
The given statement - "All the races are 175 miles long" is true.
What is function?A function is a relation between a dependent and independent variable.
Mathematically, we can write → y = f(x) = ax + b.
Given is to find whether all races are more than 175 miles or not.
All the races are 175 miles long. The given statement is true.
Therefore, the given statement - "All the races are 175 miles long" is true.
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Determine whether the table represents an exponential growth function, an exponential
decay function, or neither.
The function is an exponential decay function. Then the correct option is B.
What is an exponent?Let a be the initial value and x be the power of the exponent function and b be the increasing factor.
The exponent is given as,
y = a(b)ˣ
At (-1, 50), then the equation is given as,
50 = a / b ...1
At (1, 2), then the equation is given as,
2 = ab ....2
From equations 1 and 2, then we have
2 = 50b · b
b² = 1/25
b = 1/5
Then the value of 'a' is given as,
2 = a x 1/5
a = 10
The value of the variable 'b' is less than one that is 1/5. Then the function is an exponential decay function. Then the correct option is B.
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What is the interval in which both f (x) and g(x) are negative?
The correct option is A. (-∞,2)∪(2,∞).
Describe Function?In mathematics, a function is a relation between two sets of numbers, where each element of the first set is paired with exactly one element of the second set. A function is often represented as an equation that specifies the mapping between the two sets, with the input values called the domain and the output values called the range.
In simpler terms, a function is a rule that assigns a unique output value to every input value. For example, the equation y = x^2 represents a function where the input (x) is squared and the result is the output (y). If x = 3, then y = 9. A function can be represented as a table, graph, or equation.
Functions are used to model relationships between variables in many areas of mathematics, science, and engineering. They can be used to solve problems, make predictions, and describe real-world phenomena. They are essential in calculus, where they are used to calculate rates of change and slopes of curves.
There are many types of functions, including linear functions, quadratic functions, exponential functions, trigonometric functions, and logarithmic functions, among others. Each type has a unique set of characteristics and properties that make them useful in different contexts.
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Find two unit vectors in 2-space that make an angle of 45° with 8i+ 5j. NOTE: Enter the exact answers in terms of i,j and k. 1 (13 i +3 j) V178 u = 1 (3 i + 13 j) V178 u =
The exact terms are 1 (13 i +3 j) V178 u = 1 (3 i + 13 j) V178 u =
To find two unit vectors in a 2-space that make an angle of 45° with 8i+ 5j, we must first convert the given vector into its unit vector form. A unit vector is a vector with a magnitude of 1, so we can divide the vector 8i+ 5j by its magnitude to convert it into its unit vector form.
The magnitude of the vector 8i+ 5j can be calculated using the Pythagorean theorem as √(82 + 52) = √89 = 9.46. Therefore, the unit vector form of 8i+ 5j is (8/9.46)i+ (5/9.46)j, which can be simplified to (13/17.78)i+ (3/17.78)j.
Now, to find two unit vectors that make an angle of 45° with (13/17.78)i+ (3/17.78)j, we can use the formula for the unit vector of a vector making an angle θ with another vector u.
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Serena wants to buy 3 oranges and some kiwis and spend no more than $6.1 orange costs $0.85. 1 kiwi costs $0.50. Write and solve an inequality to represent all possible values for the number of kiwis Serena can buy.
For the given corporate bond, whose annual simple interest rate is provided, find the semiannual simple interest
payment and the total interest earned over the life of the bond. Assume 365 days in a year.
$4900 Company A, 30-year bond, 6.268%
Answer:
the semiannual interest payment is $153.77 and the total interest earned over the life of the bond is $9,226.20.
Step-by-step explanation:
To find the semiannual simple interest payment, we need to divide the annual interest rate by 2, since there are 2 semiannual periods in a year:
Semiannual interest rate = Annual interest rate / 2
= 6.268% / 2
= 3.134%
To find the semiannual interest payment, we multiply the face value of the bond by the semiannual interest rate:
Semiannual interest payment = Face value x Semiannual interest rate
= $4900 x 3.134%
= $153.77 (rounded to two decimal places)
To find the total interest earned over the life of the bond, we need to multiply the semiannual interest payment by the number of semiannual periods in the bond's life. Since the bond has a 30-year term and 2 semiannual periods in a year, the bond has a total of 60 semiannual periods:
Total interest earned = Semiannual interest payment x Number of semiannual periods
= $153.77 x 60
= $9,226.20 (rounded to two decimal places)
Therefore, the semiannual interest payment is $153.77 and the total interest earned over the life of the bond is $9,226.20.
f(x) = x² + 6x-2
g(x) = x - 6
The composite function of f(x) and g(x) is given as follows:
f(g(x)) = x² - 6x - 2.
What is the composite function of f(x) and g(x)?The composite function of f(x) and g(x) is given by the following rule:
(f ∘ g)(x) = f(g(x)).
It means that the output of the inside function serves as the input for the outside function.
The functions for this problem are given as follows:
f(x) = x² + 6x - 2.g(x) = x - 6.The composite function is the numeric value of f(x) at g(x) = x - 6, replacing each instance of x by x - 6, hence:
f(g(x)) = f(x - 6) = (x - 6)² + 6(x - 6) - 2
f(g(x)) = x² - 12x + 36 + 6x - 36 - 2
f(g(x)) = x² - 6x - 2.
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What is High power money
Answer:
High-powered money is the base for the expansion of Bank deposits and creation of money supply. The supply of money varies directly with changes in the monetary.
Step-by-step explanation:
have great day :)
YEAR GOOD PRICE QUANTITY
2012 Widgets. 5 , 10
Thingamabobs. 1 , 100
2013 Widgets 6 , 10
Thingamabobs 2 , 150
Let 2012 be the base year. What is real GDP in 2013? What is the value of the GDP price index in 2013 if its value in 2012 is 100?
Select one:
a.
$200; 180
b.
$360; 150
c.
$200; 200
d.
$150; 55.56
The value of the GDP price index in 2013 if its value in 2012 is 100:
a. $200; 180.
GDP calculationTo calculate real GDP in 2013, we need to use the prices and quantities from 2013, but value them using the prices from the base year (2012). We can use the following formula:
Real GDP = (Quantity of Widgets in 2013 x Price of Widgets in 2012) + (Quantity of Thingamabobs in 2013 x Price of Thingamabobs in 2012)
Real GDP = (10 x 5) + (150 x 1) = $200
To calculate the GDP price index in 2013, we need to find the percentage change in the value of all goods and services produced in the economy between 2012 and 2013. We can use the following formula:GDP price index = (Nominal GDP in 2013 / Real GDP in 2012) x 100
Nominal GDP in 2013 = (Quantity of Widgets in 2013 x Price of Widgets in 2013) + (Quantity of Thingamabobs in 2013 x Price of Thingamabobs in 2013)
Nominal GDP in 2013 = (10 x 6) + (150 x 2) = $360
GDP price index = ($360 / $200) x 100 = 180
Therefore, the answer is a. $200; 180.
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armen and rosanna are two employees in an electronics store. the store manager has put an emphasis on increasing the number of applications for the store credit card. the manager randomly selected 24 weeks for each employee and recorded the number of completed applications for each week, which is provided in the samples below. each employee completed 21 applications in one of the weeks selected. based on the z-scores you calculated above, would carmen or rosanna be more likely to complete 21 applications in one week? select the correct answer below: A. carmen is more likely to complete 21 applications in one week, because the absolute value of the z-score for rosanna is less than for carmen. B. carmen is more likely to complete 21 applications in one week, because the absolute value of the z-score for carmen is less than for rosanna. C. rosanna is more likely to complete 21 applications in one week, because the absolute value of the z-score for carmen is less than for rosanna.
D. rosanna is more likely to complete 21 applications in one week, because the absolute value of the z-score for rosanna is greater than for carmen .
The correct answer is A. Carmen is more likely to complete 21 applications in one week, because the absolute value of the z-score for Rosanna is less than for Carmen.
Based on the calculated z-scores, we can determine which employee is more likely to complete 21 applications in one week.
The z-score for Carmen is -1.56, which indicates that her performance is slightly below average, but still within one standard deviation of the mean. On the other hand, the z-score for Rosanna is -2.83, which is more than two standard deviations below the mean and indicates that her performance is much lower than average.
Therefore, it is more likely for Carmen to complete 21 applications in one week compared to Rosanna, as Carmen's performance is closer to the mean and within one standard deviation of it. Hence, the correct answer is A. Carmen is more likely to complete 21 applications in one week, because the absolute value of the z-score for Rosanna is less than for Carmen.
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FLIP WITH ICON IN TOP RIGHT!
Jane is in charge of planning a reception for 2200 people. She is trying to decide which snacks to buy. She has asked a random sample of people who are coming to the reception what their favorite snack is. Here are the results.
Of the 2200 people attending the reception, Jane's survey revealed that the top favorite snack among the guests is popcorn, with 35% of people selecting it as their favorite.
What is number?Number is a mathematical entity used to represent a computer magnitude it can be symbol or a combination of simple you should in order to take quantity such as the two, five, seven, three or eight number are used to verify the context including counting measuring and computing.
The second most popular snack was pretzels, at 25%, followed by chips at 20%, crackers at 15%, and nuts at 5%.
With these results, Jane has decided to purchase popcorn, pretzels, chips, and crackers for the reception. She will also include a few bowls of nuts as a healthier option. To make sure that everyone has enough snacks to enjoy, Jane has calculated that she will need to buy approximately 1 pound of popcorn, 1 pound of pretzels, 2 pounds of chips, and 2 pounds of crackers, plus 5 pounds of nuts.
With these snacks, Jane is confident that all 2200 people attending the reception will be able to enjoy their favorite snacks. She is also confident that the snacks will be enough to feed everyone and that there won't be any shortages. Jane is sure that her careful planning and selection of snacks will make the reception a success.
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Write the equation of the line that passes through (-6, 1) and (4, -3)
Answer:
To find the equation of the line passing through two points, we need to use the point-slope form of a line:
y - y1 = m(x - x1)
where m is the slope of the line, and (x1, y1) is one of the given points.
First, we can find the slope of the line using the two points:
m = (y2 - y1) / (x2 - x1)
m = (-3 - 1) / (4 - (-6))
m = -4/10
m = -2/5
Now, we can use one of the points and the slope to write the equation of the line:
y - y1 = m(x - x1)
y - 1 = (-2/5)(x - (-6))
y - 1 = (-2/5)(x + 6)
y - 1 = (-2/5)x - (2/5) * 6
y - 1 = (-2/5)x - 12/5
y = (-2/5)x - 12/5 + 1
y = (-2/5)x - 12/5 + 5/5
y = (-2/5)x - 7/5
Therefore, the equation of the line that passes through (-6, 1) and (4, -3) is y = (-2/5)x - 7/5.
Answer: y = 5x + 31
Step-by-step explanation:
You have to find the slope which is change in y over change in x. That would be (-6-4)/(1-3)
that simplifies down to 5.
You equation for a linear equation is y=mx+b with m=slope and b=y-intercept
Take a point and plug in the values for x and y. I'm going to use (-6, 1) but it doesn't really matter
1=5(-6)+b
1=-30+b
+30 +30
31 = b
Now you have everything for your equation so when you put it all together, it is y=5x+31
fill in the blank. suppose that the region is bounded by and in the first quadrant, and the region is bounded by and ___. let be the volume of the solid obtained by rotating about the -axis and let be the volume of the solid obtained by rotating about the -axis.
Answer: suppose that the region is bounded by y = x and y = 2x in the first quadrant, and the region is bounded by x = 0 and y = 2. let V_x be the volume of the solid obtained by rotating about the x-axis and let V_y be the volume of the solid obtained by rotating about the y-axis.
Step-by-step explanation:
Consider matrices A and B. What is the product of these matrices, of AB
The solution is, the product of these matrices, of
AB = [tex]\left[\begin{array}{ccc}1&-9&-14\\10&0&-15\\\end{array}\right][/tex][2×3]
What is Matrix?In mathematics, a matrix is a rectangular array or table of numbers, symbols, or expressions, arranged in rows and columns, which is used to represent a mathematical object or a property of such an object. For example, is a matrix with two rows and three columns.
here, we have,
matrix A = [tex]\left[\begin{array}{ccc}-1&4\\0&5\\\end{array}\right][/tex][2×2]
matrix B = [tex]\left[\begin{array}{ccc}7&9&2\\2&0&-3\\\end{array}\right][/tex][2×3]
As, no. of column of A = no. of column of B
so, the product of AB = [tex]\left[\begin{array}{ccc}1&-9&-14\\10&0&-15\\\end{array}\right][/tex][2×3]
Hence, The solution is, the product of these matrices, of
AB = [tex]\left[\begin{array}{ccc}1&-9&-14\\10&0&-15\\\end{array}\right][/tex][2×3]
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Answer:
C) [tex]\left[\begin{array}{ccc}1&-9&-14\\10&0&-15\\\end{array}\right][/tex] is the answer
Step-by-step explanation:
Rules of Multiplication of Matrices:-
To find the product of matrices the columns of A should be equal to the number of rows of B If AB is defined BA is not be defined If A and B are square matrices of the same order then both AB and BA are definedMatrix multiplication
A= [tex]\left[\begin{array}{ccc}-1&4\\0&5\end{array}\right][/tex] 2x2 B=[tex]\left[\begin{array}{ccc}7&9&2\\2&0&-3\end{array}\right][/tex]2x3
AB will be of 2x3 order
AB11= -1x7+4x2=1
AB12= -1x9+4x0=-9
AB13= -1x2+3x(-3)= -14
AB21= 0x7+5x2=10
AB22= 0x9+5x0=0
AB23= 0x2+5x(-3)=-15
AB=[tex]\left[\begin{array}{ccc}1&-9&-14\\10&0&-15\end{array}\right][/tex]
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A company that usually sells satellite TV equipment for $74 and two year subscription of satellite TV service for 666 has a special offer that is sells the equipment for 420 and two years of service free. If the company sells one of these packages how much revenue should the company recognize on July 1
The revenue the company should recognize on July 1 is $420.
What is the Revenue recognition theorem?Revenue recognition refers to the accounting principle that outlines the conditions under which a company recognizes revenue on its financial statements. Generally, revenue is recognized when the goods or services are delivered to the customer and the payment is reasonably assured.
To determine the revenue the company should recognize on July 1, we need to understand the revenue recognition principles.
In this case, the company is offering a special package that includes satellite TV equipment for $420 and two years of service free.
The company will deliver the equipment to the customer and the customer will receive two years of service for free.
Since the two years of service are free, the company cannot recognize revenue for that portion of the package.
Therefore, the revenue the company should recognize on July 1 is only for the equipment, which is sold for $420.
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Find the slope of the line that goes through the points (14.-9) and (-6,12)
[tex]-\frac{21}{20}[/tex] or -1.05
Step-by-step explanation:Slope describes the rate of change for a line.
Finding the Slope
One way to find the slope when given 2 points is using the slope formula. The slope formula is as follows:
[tex]\displaystyle\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]To find the slope, just plug in the x and y values from each coordinate pair. Remember that in a coordinate pair, the order is (x-value, y-value).
[tex]\frac{12-(-9)}{-6 - 14}[/tex] = [tex]-\frac{21}{20}[/tex]This shows that the slope is -21/20. This can be rewritten as -1.05.
Interpreting Slope
Slope is often described as rise over run. This means that slope is the change in y divided by the change in x. On a graph, a slope of -21/20 means that the graph goes down 21 units and right 20 units between each point. This can be seen in the points we are given. Point (14, -9) is 21 units below and 20 units to the right of (-6, 12)
One Siberian tiger traveled 620 miles in 22 days in search of food. Write this amount as a unit rate to the nearest mile.
The equation that represents the distance traveled will be 22x = 620. And the distance traveled each day will be 28.18 miles.
What is the rate?The rate is the ratio of the amount of something to the unit. For example - If the speed of the car is 20 km/h it means the car travels 20 km in one hour.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
One Siberian tiger traveled 620 miles in 22 days in search of food.
Let the Siberian tiger travels 'x' on each day. Then the equation is given as,
22x = 620
x = 28.18 miles each day
The equation that represents the distance traveled will be 22x = 620. And the distance traveled each day will be 28.18 miles.
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Towns A and B are 16 miles apart. How many points are 10 miles from town A and 12 miles from town B? 1) 1 2) 2 3) 3 4) 0
The number of points that are 10 miles from A and 12 miles from B is 0.
option 4.
How many points are 10 miles from town A and 12 miles from town B?Let's call the point in question "X".
If X is 10 miles from town A and 12 miles from town B, we can represent this as two equations:
d(A, X) = 10
d(B, X) = 12
where;
d(A, X) represents the distance between towns A and X, and d(B, X) represents the distance between towns B and X.We can use the Pythagorean theorem to solve for the position of X.
d(A, B)² = d(A, X)² + d(B, X)²
where;
d(A, B) represents the distance between towns A and B16² = 10² + d(B, X)²
256 = 100 + d(B, X)²
156 = d(B, X)²
12.5 = d(B, X)
So, there are no points that are 10 miles from town A and 12 miles from town B, because the distance from town B to any point that is 10 miles from town A would have to be less than 12 miles, based on the Pythagorean theorem.
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