The Normal model is a good approximation for the sampling distribution.
a) According to the Central Limit Theorem, the theoretical mean and standard deviation for a sample size of 20 should be 0.05 and 0.02, respectively. For a sample size of 100, the theoretical mean and standard deviation should be 0.05 and 0.01, respectively.
b) The observed mean and standard deviation for a sample size of 20 was 0.052 and 0.021, respectively. For a sample size of 100, the observed mean and standard deviation was 0.051 and 0.012, respectively. These values are fairly close to the theoretical values.
c) Looking at the histograms in Exercise 1, I would be comfortable using the Normal model as an approximation for the sampling distribution at a sample size of 100.
d) The Success/Failure Condition states that the sample size should be large enough for the sampling distribution of the sample proportions to be approximately normal. Since I chose a sample size of 100, which satisfied the condition, I can be confident that the Normal model is a good approximation for the sampling distribution.
The sample size of 100 is large enough for the sampling distribution of the sample proportions to be approximately normal, and the observed mean and standard deviation is close to the theoretical values. Therefore, the Normal model is a good approximation for the sampling distribution.
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what is 2 times 2 Thank you
Answer:
2 • 2 = 4 because you multiply numbers by adding groups of a number!
Answer:
Step-by-step explanation:
2x2=4
Refer to the T-account below Work In Process 30,000 (12) Bal. 270,000 90,000 70,000 0,000 Entry (12) could represent which of the following? (9)110,000 Bal A) Direct labor cost incurred in production B) Purchases of raw materials C) The cost of goods manufactured transferred to Finished Goods D) The cost of indirect materials incurred in production
The correct option answer is C , that is Entry 12 represents The cost of goods manufactured transferred to Finished Goods
Given that, the T-account below Work In Process 30,000 (12) Bal. 270,000 90,000 70,000 110,000
We have, Total work in progress (WIP) before Transfer =
30,000 + 90,000 +70,000 + 110,000 = $300,000
And the ending work in progress (WIP) = 30,000
It clearly means that 270,000 (300,000 - 30,000) of goods has been transferred to finished goods inventory.
Therefore, the balance entry represents that the cost of goods manufactured transferred to Finished Goods.
The required question's table of T-account is attached below.
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100 POINTS!!!
Find the equation of the linear function represented by the table below in slope-intercept form.
x y
1 0
2 5
3 10
4 15
Trade in the Vedic Age led to
the rise of kingdoms because of the importance of controlling land and long-distance travel routes
the building of an extensive system of roads because of the difficult terrain
the creation of a large banking class because of the need to exchange different currencies
the development of a centralized government that controlled the economic decisions of its people
Trade in the Vedic Age led to: A, the rise of kingdoms because of the importance of controlling land and long-distance travel routes
What happened in the Vedic Age?The Vedic Age was a period between 1500 BC and 600 BC. This period was characterized by the next major civilization that occurred in ancient India following the decline of the Indus Valley Civilization by the year 1400 BC. The Vedas were very composed in this age.
Thus, we can say that in this vedic age;
- Indian civilization saw an unprecedented increase.
- Kingdoms were formed that gained riches and prominence.
These kingdoms mostly formed because increased trade in the area gave rise to the need to be controlled and profited from.
In conclusion, option A is correct.
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Answer:
Trade in the Vedic Age led to: A, the rise of kingdoms because of the importance of controlling land and long-distance travel routes
Step-by-step explanation:
just did the quiz lol
Parallelogram ABCD is plotted on a coordinate plane. The coordinates of point A are (-3, 5). Point B is at (1, 2), and point C is at (2, -4). What are the coordinates of the fourth vertex D
The coordinates of vertex D are (-3 + 1, 5 - 6) = (-2, -1).
What is parallelogram?
A parallelogram is a quadrilateral that has its opposite sides parallel and equal to each other. It has its interior opposite angles equal. Also, the angles on the same side of the transversal sum up to 180 degrees or are supplementary to each other.
To find the fourth vertex of a parallelogram given the coordinates of three vertices, we can use the property that opposite sides of a parallelogram are parallel and equal in length.
If we subtract the vector AB from the vector AC, we obtain the vector AD, which gives us the coordinates of the fourth vertex D.
AB = (1 - (-3), 2 - 5) = (4, -3)
AC = (2 - (-3), -4 - 5) = (5, -9)
AD = AC - AB = (5 - 4, -9 + 3) = (1, -6)
Therefore, the coordinates of vertex D are (-3 + 1, 5 - 6) = (-2, -1).
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When multiplying an equation so that you can cancel one of the variables, be certain to multiply both sidesof the equation. For instance, multiplying the above equation incorrectly would yield
:--1.5x -1.5y = 40, which would give you very incorrect values when you tried to solve for x and y.
Part D Now, add the two equations and find the value of x.
Express your answer to three significant figures.
ANSWER
The two equations would be 1.5x + 2.5y = 30, 3x + 1.5y = 40, when we add both the equations we get, 4.5x + 4y = 70, and the value of x is 10.
How to solve the linear equation in two variables?To solve a system of linear equations in two variables using the substitution in two variables using the substitution method. First solve one of the equations for one variable. Substitute this in the other equation in terms of a single variable. Then solve it for the variable. Now, substitute it in any of the equations to get the value of another variable.
Given:
Add the two equations together:
1.5x + 2.5y = 30
3x + 1.5y = 40
(1.5x + 3x) + (2.5y + 1.5y) = (30 + 40)
4.5x + 4y = 70
Isolate the x-variable by subtracting 4y from both sides of the equation:
4.5x + 4y = 70
4.5x + 4y - 4y = 70 - 4y
4.5x = 70 - 4y
Divide both sides of the equation by 4.5 to solve for x:
4.5x = 70 - 4y
4.5x/ 4.5 = (70 - 4y)/4.5
x = (70 - 4y) / 4.5
Substitute the value of y from the first equation:
1.5x + 2.5y = 30
2.5y = 30 - 1.5x
y = (30 - 1.5x) / 2.5
Substitute the value of y into the equation for x and solve:
x = (70 - 4y) / 4.5
x = (70 - 4((30 - 1.5x) / 2.5)) / 4.5
x = 10
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For Halloween you bought a bag of 500 pieces of mixed candy. After just one hour you see that you only have 350 pieces left for the rest of the evening. What is the percentage change in candy after that first hour?a. -25%b. -35%c. -15%d. -30%
She has 480 pieces of candy left after Halloween (option a ) -25% percentage
to solve this problem we have to analyze the information given:
Candy available: six 100-piece bags
Number of children: 20
Pieces of candy for each child: 6
So, we have to calculate the total amount of candy available by multiplying the pieces of candy that each bag has (100) by the number of bags(6)
100 x 6 = 600
Then, we have to multiply the number of children (20) by the number of pieces of candy that each one receives (6) and then subtract that number to the number of pieces of candy available.
20x 6 = 120
600 -120 = 480
She has 480 pieces of candy left after Halloween (option a ) or -25 percentage
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This is the answer on the assignment question I think
Answer: you got it right
Step-by-step explanation:
The consumer expenditure, in dollars, for a commodity is the product of its market price, p, and the number of units demanded, x. Suppose that for a certain commodity, the consumer expenditure is given by
15,000p − 125p^2.
a)Factor this in order to find an expression for the number of units demanded. (Simplify your answer completely.)
Answer:
Step-by-step explanation:
In a game, Mateo earned 180 points for collecting stars. He earned 270 points for
lestroying ships. Plus, he earned 5 points for each prisoner he saved. If he finished
he game with 500 points, how many prisoners did he save?
A
50
B 10
C) 15
D 250
ht©Swun Math
6.EE.6
SWUN MATH
6.EE.7
Grade 6 Unit 5 Mid-Unit Assessment VB, Page 1
Answer:
B. 10
Step-by-step explanation:
We can solve this fast by adding the points from the stars and ships together, then subtracting that number from the total 500 points Mateo earnd.
So it would look like this:
180+270=450
500-450=50
So if Mateo scored 50 points from saving prisoners and save is worth 5 points each, we can do 50÷5=10.
Write the equation of the line of best fit using the slope-intercept form of the line ?=??+? , show all your work , including the point used to determine the slope and how the equation was determined.
y = x is the linear regression equation for the given Dot plot.
What is a Linear equation?A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.
Given, a graph of a linear regression that has points (60, 60) and (70, 70) as we can see in the graph.
From the general formula of the linear equation:
Y = mx + b
where m is the slope
b is the y-intercept
Slope m = (y₂ -y₁)/(x₂ - x₁)
In our case,
Slope = (70 - 60)/70 - 60
m = 10/10 = 1
Thus the equation of a line:
y = x + b
Since, the line goes from (60, 60)
60 = 60 + b
b = 0
Thus, the final equation of the line will be y = x
Therefore, the linear regression equation for the given Dot plot is y = x.
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Archimedes went to sleep beside a big rock. He wanted to get up at 7 77 AM, but the alarm clock was yet to be invented! He decided to sleep at the spot where the rock's shadow should end when it's 7 77 AM so as to be awakened by the direct sunlight. Archimedes knew that at 7 77 AM, the sunlight reaches the ground at an angle of 3 1 ∘ 31 ∘ 31, degree. The rock beside which he slept was 5 55 meters tall. How far from the rock did Archimedes go to sleep? Round your final answer to the nearest hundredth
The distance from the rock was 11.26 meters.
The formula used to calculate the distance is:
d = h/tan(α)
Where d is the distance, h is the height of the rock, and α is the angle of the sun at 7 77 am.
Using this formula, the distance from the rock can be calculated as follows:
d = 5.55/tan(31∘)
d = 11.26 meters
Rounding the answer to the nearest hundredth, the distance from the rock is 11.26 meters.
Archimedes knew that the sunlight reaches the ground at an angle of 3 1 ∘ 31∘ 31, degree at 7 77 AM. He also knew that the rock beside him was 5 55 meters tall. Using this information, he was able to calculate the distance he needed to go in order to be awakened by the direct sunlight. The formula used to calculate the distance is d = h/tan(α), where d is the distance, h is the height of the rock, and α is the angle of the sun. After plugging in the values, the distance from the rock was calculated to be 11.26 meters. Rounding the answer to the nearest hundredth, the distance from the rock was 11.26 meters.
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Percy thinks that since the data {5, 0, 4, 0, 0} has a mode of 0, the data has no mode.
Using 3-5 sentences, critique Percy's reasoning.
The reasoning of Percy is incorrect because there is one mode for the data set.
What is Mode?Mode of a data set is the value that occur most frequently in a data set.
There may be no mode, one mode or more than one mode for a data depending on the number of times values are repeating.
Given data is {5, 0, 4, 0, 0}.
Here the value 0 is repeating three times.
No other number has repeated three times.
So there is only one mode for the data set and is 0.
This does not mean that there is no mode for the set.
A data set has no mode if and only if all the numbers in the set are repeated same number of times.
Hence the reasoning of Percy is incorrect.
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find the horizontal and vertical asymptotes of the curve. y = 3 + x4 x2 − x4
The horizontal asymptote of the curve y = 3 + x^4 / x^2 - x^4 is y = 1 and the vertical asymptotes are x = +√(x^4) and x = -√(x^4).
How to find the horizontal and vertical asymptotes of the curve?To find the horizontal and vertical asymptotes of the curve y = 3 + x^4 / x^2 - x^4, we need to examine the behavior of the function as x approaches positive and negative infinity.
For the horizontal asymptote, we look at the behavior of the function as x approaches positive and negative infinity. If the degree of the numerator is less than the degree of the denominator, the horizontal asymptote is y = 0. If the degree of the numerator is equal to the degree of the denominator, the horizontal asymptote is the ratio of the leading coefficients of the numerator and denominator. If the degree of the numerator is greater than the degree of the denominator, there is no horizontal asymptotic.
According to question:In this case, the degree of the numerator (x^4) is equal to the degree of the denominator (x^4), and the leading coefficients are both 1. Therefore, the horizontal asymptotic is the ratio of the leading coefficients, which is y = 1.
For the vertical asymptote, we look for any x-values that make the denominator equal to zero, since the function is undefined for these values. In this case, x = +√(x^4) and x = -√(x^4) are the roots of the denominator, so they are the vertical asymptotes.
Therefore, the horizontal asymptote of the curve y = 3 + x^4 / x^2 - x^4 is y = 1 and the vertical asymptotes are x = +√(x^4) and x = -√(x^4).
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in each of the following scenarios, state what type of distribution should be used to model the response y: binomial, multinomial, poisson, or normal.
The total number of respondents and x would be the total number of respondents who rate the product a 5.
A survey asking respondents to rate a product on a scale of 1 to 5
In this scenario, a binomial distribution should be used to model the response y. A binomial distribution is a discrete probability distribution that is used to model the probability of a certain number of successes in a given number of trials. The formula for a binomial distribution is P(x) = nCx * p^x * (1-p)^(n-x) where n is the number of trials, x is the number of successes, and p is the probability of success in a single trial. In this case, n would be the total number of respondents and x would be the total number of respondents who rate the product a 5.
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3 find the distance from the point (1; 2; 3) to the line that contains the two points (1; 3; 2) and (5;
The distance from the point for the line is (0; -1; 1).
A line is a set of points that lie on the same straight path, extending in opposite directions without end.
To find the distance from the point (1; 2; 3) to the line that contains the two points (1; 3; 2) and (5; 7; 4), we can use the vector formula.
First, we need to find the direction vector of the line by subtracting the first point from the second point:
=> (5; 7; 4) - (1; 3; 2) = (4; 4; 2).
Next, we need to find a vector that connects the point to the line, which is
=> (1; 2; 3) - (1; 3; 2) = (0; -1; 1).
Finally, the magnitude of this cross product is the distance from the point to the line.
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Convert and round off to 3 decimal places a.1 235 m to km b.0,032 m to mm c.635 g to kg d.0,775 l to ml e.3,25kl to l f. 24,5 km to m g.63,8 ml to l h.2,3 tons to kg i.32 450 500 mg to kg j.7 623 cm to m
May you Please help me
The given coordinates make a right angled triangle.
What is scaling? How is it done?Scaling is defined as the process of changing the dimensions of the original figure as per some specific proportional rule.
If the initial length is equivalent to {a}. Then, after the scaling by the scale factor of {K}, the length becomes {Ka}. Similarly, if the initial coordinates are (x, y) then after scaling the coordinates would be {Kx, Ky}.
Scale factor is a dimensionless quantity that tells by how much time a specific dimension of a figure is enlarged or reduced. Mathematically, it is the ratio of two similar quantities. In case of length scaling, we can write -
{K} = L{final}/L{initial}
Given are the coordinates of the triangle as -
P(-1, 3)
Q(9, - 1)
R(-3, - 2)
The distance formula is given as -
d² = (x₂ - x₁)² + (y₂ - y₁)²
PQ = 2√29
QR = √145
RP = √29
QR² = RP² + PQ²
145 = 29 x 4 + 29
145 = 145
Therefore, the given coordinates make a right angled triangle.
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what is 23.9*square root of 0.7124 divided by 3.877*52.18
Answer:
271.498934853
Step-by-step explanation:
Answer:
The answer is 0.039.
Step-by-step explanation:
Find the area if a triangular region whoe bae i 90m long and the correponding altitude i 40m long
The area of the triangular region is 1800 square meters.
The area of a triangular region can be calculated by multiplying its base by its corresponding altitude and dividing by 2.
Given a triangular region with a base of 90 m and a corresponding altitude of 40 m, the area of the region can be calculated as follows:
Area = (Base * Height) / 2
Area = (90 * 40) / 2
Area = 3600 / 2
Area = 1800 square meters
Therefore, the area of the triangular region is 1800 square meters.
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The area of the triangular region is 1800 square meters.
The area of a triangular region can be calculated by multiplying its base by its corresponding altitude and dividing by 2.
Given a triangular region with a base of 90 m and a corresponding altitude of 40 m, the area of the region can be calculated as follows:
Area = (Base * Height) / 2
Area = (90 * 40) / 2
Area = 3600 / 2
Area = 1800 square meters
Therefore, the area of the triangular region is 1800 square meters.
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Two teams need to raise $100 each for their end-of-the-year field trips. Team A wants to sell
popcorn at the Spring Fling Carnival, and Team B wants to sell cotton candy. It costs $15 to rent
a popcorn machine and it costs $25 to rent a cotton candy maker. The cost of additional
supplies for the popcorn is $0.05 per bag. The additional cost for the cotton candy is $0.10 per
stick. Team A will sell the bags of popcorn for $0.50 each. Team B will sell the cotton candy for
$0.75 per stick
question:
5: What is the least number of items Team A will need to sell to avoid losing money? pls explain!!!
Answer:
approximately 256 popcorn bags
Step-by-step explanation:
the cost of popcorn machine is $15. So we should add it to 100$
Then it is 115$. This is the amount that team A need
The cost of additional supplies for the popcorn is $0.05 per bag & team A will sell the bags of popcorn for $0.50 each. then the profit that the team A can gain by selling a bag is,
[tex]0.50 - 0.05 = 0.45[/tex]
Then,
[tex] \frac{115}{0.45} = 255.55[/tex]
Molly is building a model roller
coaster as part of a school project.
She chose the Millennium Force in
Cedar Point, which is 94 meterstall,
to model. If Molly uses a scale of
1 centimeter - 4 meters, what will
be the height of the model?
Your answer
The height of the model is 2350 cm or 23.5 m.
The concept used in this calculation is scale modeling. In scale modeling, the size of an object is reduced or increased proportionally to match a specified scale.
The height of the roller coaster is being reduced using a specific scale ratio of 1 centimeter to 4 meters. This allows Molly to build a model that represents the real-life roller coaster, but at a smaller size.
The height of the Millennium Force in meters is 94 meters. If Molly uses a scale of 1 centimeter to 4 meters, then 1 meter will be equal to 100/4 = 25 centimeters.
So, the height of the model will be 94 x 25 = 2350 centimeters.
Thus, the height of the model is 2350 cm or 23.5 m.
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The Millennium Force in Cedar Point, which is 94 meters tall. The height of the model will be 94 meters / 4 meters per centimeter = 23.5 centimeters.
Molly is building a model roller coaster that is based on the Millennium Force in Cedar Point, which is 94 meters tall. To create a model of the roller coaster, she is using a scale of 1 centimeter to 4 meters. This means that for every 1 centimeter on the model, it represents 4 meters in the actual height of the roller coaster.
To find the height of the model, we need to divide the actual height of the roller coaster by the ratio of meters per centimeter. That is:
Height of the model = 94 meters / (1 centimeter / 4 meters)
Height of the model = 94 meters * 4 meters / 1 centimeter
Height of the model = 376 meters / 1 centimeter
Height of the model = 376 centimeters
So, the height of the model is 376 centimeters.
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Kendra has been saving her earnings from mowing the neighborhood lawns. She has 80 dollars and wants to spend it all on games.
If each game costs 9 dollars, how many can Kendra buy?
a landscape architect is planning a flower garden. she decides to arrange the garden in rows, and for each row, the number of plants will increase by 3. she has a total of 70 plants and plans for 5 rows. how many plants will be on the first row? responses
The number of plants in the first row is 8, which corresponds to option "b. 8 plants".
The concept used in this problem is arithmetic sequence or arithmetic progression. An arithmetic sequence is a sequence of numbers in which each term is the previous term plus a constant. In this problem, the constant is 3, and the number of plants in each row increases by 3. By using the formula for the sum of an arithmetic series, the total number of plants in all the rows can be calculated.
Let's assume that the first row has x number of plants.
The total number of plants in all rows is 70, so we can write an equation using x to represent the number of plants in each row:
x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 70
5x + 30 = 70
5x = 40
x = 8
So, the number of plants in the first row is 8, which corresponds to option "b. 8 plants".
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The number of plants in the first row is 8, which corresponds to the option "b. 8 plants".
The concept used in this problem is an arithmetic sequence or arithmetic progression. An arithmetic sequence is a sequence of numbers in which each term is the previous term plus a constant. In this problem, the constant is 3, and the number of plants in each row increases by 3. By using the formula for the sum of an arithmetic series, the total number of plants in all the rows can be calculated.
Let's assume that the first row has x number of plants.
The total number of plants in all rows is 70, so we can write an equation using x to represent the number of plants in each row:
x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 70
5x + 30 = 70
5x = 40
x = 8
So, the number of plants in the first row is 8, which corresponds to the option "b. 8 plants".
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Bill need to build a rectangular harp pen. The pen mut have a perimeter of 24 meter
The cost of the fence used to make the rectangular sheep pen is £57.6. The result is obtained by multiplying the perimeter by the fencing price.
How to calculate the cost for fencing a building?The cost for fencing a building can be calculated by multiplying the price of a certain size of fence by the perimeter or the length side to be fenced.
Bill builds a rectangular sheep pen.
Perimeter, P = 24 mFencing cost = £1.20 per half meterFind the total cost of the fence!
The total cost of the fence will be
= P × fencing cost
= 24 m × £1.20 / ½ m
= 24 × £2.40
= £57.6
Hence, the fence to make the sheep pen will cost £57.6.
Your question is incomplete. But most probably your full question was
Bill needs to build a rectangular sheep pen. The pen must have a perimeter of 24 m. Every half meter of fencing costs him £1.20. Work out the cost of the fence used to make the sheep pen!
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if all else remains the same, what happens to a confidence interval if the sample standard deviation gets smaller?
The confidence interval narrows as the sample standard deviation gets smaller.
The width of a confidence interval depends on the sample size, the confidence level, and the sample standard deviation. The formula for a confidence interval is given as (sample mean - z-score * (sample standard deviation/square root of sample size)) to (sample mean + z-score * (sample standard deviation/square root of sample size)), where z-score depends on the confidence level.
Since the sample standard deviation is in the denominator of this formula, a smaller sample standard deviation results in a smaller value in the denominator and thus a narrower interval.
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the first three terms of a sequence are given. round to the nearest thousandth (if necessary). 156,153,150,...156,153,150,... find the 46th term.find the 46th term.
The first term of the sequence is 156. Then the 46th term of the sequence is 156.
What are sequence and series?
A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after. In mathematics, a series can be generally described as the sum of an infinite sequence of values.
Given
The first three terms of a sequence are shown.
156,153,150 and so on.
The given sequence is repeating every three terms, and the repeating terms are 156, 153, 150.
So, to find the 46th term, we need to determine which set of repeating terms it belongs to.
Dividing 46 by 3 gives us a quotient of 15 with a remainder of 1, meaning the 46th term belongs to the 16th set of repeating terms and will be the first term in that set, which is 156.
So, the 46th term of the sequence is 156.
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The first term of the sequence is 156. Then the 46th term of the sequence is 156.
What are sequence and series?
A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after. In mathematics, a series can be generally described as the sum of an infinite sequence of values.
Given
The first three terms of a sequence are shown.
156,153,150 and so on.
The given sequence is repeating every three terms, and the repeating terms are 156, 153, 150.
So, to find the 46th term, we need to determine which set of repeating terms it belongs to.
Dividing 46 by 3 gives us a quotient of 15 with a remainder of 1, meaning the 46th term belongs to the 16th set of repeating terms and will be the first term in that set, which is 156.
So, the 46th term of the sequence is 156.
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Rabbits in a lab are to be kept on a strict daily diet that includes 34 grams of protein, 17 grams of fat, and 47 grams of carbohydrates. The scientist has only three food mixes available with the following grams of nutrients per unit.
Each rabbit needs 4 units of protein, 2 units of fats, and 3 units of carbohydrates for the dietary need.
Given that
Mix A: 6 protein, 4 fat, 2 carbs
Mix B: 4 protein, 2 fat, 6 carbs
Mix C: 5 protein, 2 fat, 8 carbs
Now convert these mixes into quadratic equations
6a + 4b + 5c = 47--------(1)
4a + 2b + 2c = 26--------(2)
2a + 6b + 8c = 44-------(3)
Now divide (2) and )3) equations by 2:
6a + 4b + 5c = 47
2a + b + c = 13------(4)
a + 3b + 4c = 22--(5)
Eliminates A:
Pairs equations #4 and #5
6a + 4b + 5c = 47
2a + b + c = 13
Now multiply -3 for Equation(4) and after add with Equation (1):
6a+4b+5c=47
-6a -3b-2c = 39
------------------------
b + 2c = 8
Pairs equations (4) and (5):
2a + b + c = 13
a + 3b + 4c = 22
multiply -2 for Equation(5) and after add with Equation (4):
2a + b + c = 13
-2a-6b -8c =44
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-5b+-7c=-31
multiply everything by -1
5b+7c=31
2 by 2 system from equations above in bold:
b+2c=8
5b+7c=31
solves by substitution: b = 8 - 2c
5(8 - 2c) + 7c = 31
40 - 10c + 7c = 31
40 - 3c = 31
-3c = -9
c = 3
Then b = 8 - 2(3) = 8 - 6
b=2
Simplified second equation: 2a+b+c=13
2a+2+3=13
2a=8
a = 4
Therefore, A=4 B=2 C=3
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what’s the square root of 50, 147,96 and -8 square root 16
The value that a number produces when it is multiplied by itself is known as the square root of the number. The square root is denoted by the radical sign. For instance, 16 Equals 4. The root symbol or surds is another name for the radical symbol.
How do you calculate the square root?The result of multiplying a number by itself yields its square value, while the square root of a number can be found by looking for a number that, when squared, yields the original value. It follows that a a = b if "a" is the square root of "b."
The square root of 50 is 7.07106781187.
The square root of 147 is 12.124355653
The square root of 96 is 9.79795897113
The square root of -8 is 2.82842712475i
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. Find the area for the following figure.
20.3 cm
6.2 cm
The area of the triangle is 62.93 cm²
Area of the triangle:Triangle is a 2-dimensional closed figure that is formed by 3 sides. The area of the triangle is the region that is bounded by the three sides of the triangle. The formula for the area of the triangle is given by
Area of triangle = (1/2) × base × height
Here we have
a triangle upside down
The base of the triangle = 20.3 cm
Height of the triangle = 6.2 cm
From the formula,
Area of the triangle = 1/2 base × height
Area of the triangle = (1/2) × 20.3 × 6.2
= 20.3 × 3.1
= 62.93 cm²
Therefore,
The area of the triangle is 62.93 cm²
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