The exponential function model is y = (0.85[tex])^{t/12[/tex].
We know, The form of the function should be
y= a bˣ
Where, A should be the initial amount and b decrease rate.
Now, y = [tex]b^{t/12}[/tex]
So, the value of base be
= (100 - 15) / 100
= 0.85
Then, the function should be y = (0.85[tex])^{t/12[/tex]
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A hat contains four slips of paper number 125 and six a slip of paper is selected from the hat, and its number is recorded. The papers returns the hat and a second slip of paper is selected and it’s number is recorded
What is the probability distribution for the variable X
The probability distribution for X is given below:
Probability of no even number, (X = 0)= 1/2
Probability of one even number, (X = 1) = 1/2
Probability of two even numbers, (X = 2) = 1/8
What is a probability distribution?The probability distribution for X is found as follows:
The probability that an even number is not selected i.e. X = O
P(X = 0) = (2/4 * 2/4) + (2/4 * 2/4)
P(X = 0) = 1/2
The probability that an even number is selected once i.e. X = 1
P(X = 1) = (2/4 * 2/4) + (2/4 * 2/4)
P(X = 1) = 1/2
The probability that an even number is selected twice i.e. X = 2
P(X = 2) = 2/4 * 2/4
P(X = 2) = 1/8
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Determine which translations would map Figure
W onto Figure X
The sequence of steps that translates figure W to figure X are -
It is first shifted by the rule (x, y) → (x, y - 3)The image is then reflected across the y - axis.The image is then reflected across the x - axis.Refer to the image attached. It shows figure W and figure X. We can write the sequence of steps for the given translation as -
It is first shifted by the rule (x, y) → (x, y - 3)The image is then reflected across the y - axis.The image is then reflected across the x - axis.To solve more questions on translations, visit the link-
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Question 17 of 21
A sweet potato pie with a diameter of 10 inches is cut into 8 equal slices. To
the nearest square inch, what is the area of each slice?
A. 39 in²
B. 10 in2
C. 5 in2
D. 20 in²
Pleaseee help I need a visual to do this. I'll really appreciate it
The visual that can help you in creating a 3D structure using rectangular prism and others is given in the image attached.
What is the 3D structure creation?3D structure creation is the method of planning and building three-dimensional structures or objects utilizing various materials and methods. This may make use of physical development with the use of materials such as wood, metal, and plastic, as well as virtual development utilizing computer program programs.
In virtual 3D structure creation, creators make use of program to make 3D models of structures or objects. These models can be seen and controlled in virtual space, and can be utilized to reenact how the structure will see and work within the real world.
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See text below
1. Start by creating a rectangular prism
as the base of your structure. This will
be the main structure that includes
the walls and interior rooms.
2. Add a cylindrical tower to one corner of the rectangular prism. Adjust the size and height to your liking.
3. Add another cylindrical tower to the opposite corner of the rectangular
prism. Again, adjust the size and
height to your liking.
4. Add a pyramid-shaped roof to one of the cylindrical towers, and a cone-
shaped roof to the other cylindrical tower.
5. Add a second rectangular prism on top of the first one, with a different orientation or size. This can serve as an additional room or tower.
6. Add a pyramid-shaped roof to the second rectangular prism, and a cone-shaped roof to the cylindrical tower that does not have one yet.
7. Add a rectangular prism
perpendicular to the main structure,
creating an L-shape. This can be a
separate building or an extension of
the main structure.
8. Add a pyramid-shaped roof to the new
rectangular prism, and a cone-shaped roof to the cylindrical tower on the
opposite side of the main structure. 9. Finally, add spheres as decorative
elements to the walls and towers. You can also add other shapes, such as additional rectangular prisms,
pyramids, or cones, as long as you have at least 2 of each of the 5
required shapes.
Jenny has $1200 in her savings account. If the bank pays 3% interest per year on savings, how much interest does she earn in one year?
Jenny earns $36 in interest in one year in her savings account.
To calculate the interest that Jenny earns in one year on her savings account, we can use the formula for simple interest:
I = P x r x t
where I is the interest earned, P is the principal amount (in this case, $1200), r is the interest rate (in decimal form), and t is the time period (in years).
In this case, the interest rate is 3% per year, which can be written as 0.03 in decimal form. The time period is one year. So we have:
I = 1200 x 0.03 x 1
I = $36
Therefore, Jenny earns $36 in interest in one year in her savings account.
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Solve for x.
12x² -2=14
Answer:
�
=
1.154701
Step-by-step explanation:
12x sqaured - 2 = 14
so first add 2 to make it 16 in the other side.
12x sqaured =16 then divide the sqaured and get 4 on the other side
so 12x = 4 then the answer is 4/12 or 1/3
Answer:
Step-by-step explanation:
12x²-2=14 add 2 to both sides
12x²=16 divide both sides by 12
x² = 16/12 reduce by dividing top and bottom by 4
x²=4/3 take square root of both sides to cancel square
when you take sq root you also get ±
x=±[tex]\sqrt{\frac{4}{3} }[/tex] you can take square root of 4
= ± [tex]\frac{2}{\sqrt{3} }[/tex] you can never leave root on bottom so multiply by
root on top and bottom to simplify
= ± [tex]\frac{2}{\sqrt{3} } \frac{\sqrt{3} }{\sqrt{3} }[/tex]
= ± [tex]\frac{2\sqrt{3} }{3}[/tex]
Graph the solution set
The graph of the inequality is on the image at the end.
How to graph the solution set of the inequality?To graph this, we need to do a solid graph of the linear equation:
y = -(7/2)x + 4
And because the symbol ≥ (and that is why we will use a solid line instead of a dashed line) is used, we need to shade all the region above that line graph.
Then the graph of the inequality will be something like the one of the graph at the end.
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Evaluate the function below it’s a given output value of 8
f(x)=40/5x-1
Try These questions out and I’ll give you brainliest
The expressions are simplified to;
1. 72n² + 63n
2. 18t - 18t²
3. -18b² - 18b
4. -56r - 21r²
5. -6m + 9m²
What are algebraic expressions?Algebraic expressions are simply described as expressions that are known to consist of coefficients of variables, variables, constants, terms, and factors.
These algebraic expressions are also made up of mathematical or arithmetic operations.
These operations are;
BracketParenthesesAdditionMultiplicationDivisionSubtractionFrom the information given, we have;
1. -9n (-8n -7)
expand the bracket
72n² + 63n
2. -2t(-9 + 9t)
expand the bracket
18t - 18t²
3. -3b(6b + 6)
expand the bracket
-18b² - 18b
4. -7r(8 + 3r)
expand the bracket
-56r - 21r²
5. 3m(-2 + 3m)
expand the bracket
-6m + 9m²
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A group of consumers were asked whether they prefermed Brand A or Brand B
Being male and preferring Brand A are independent, as:
P(male|Brand A) = P(male).
How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.
From the table, we are already given the relative frequencies, hence the probability of being male is given as follows:
0.5 + 0.15 = 0.65.
The conditional probability of being male, given that the person prefers brand A, is given as follows:
P(male|Brand A) = P(male and Brand A)/P(Brand A) = 0.5/0.8 = 0.625.
As the probabilities are equal, the events are independent.
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c+a=d+r solve for a?
In the equation c + a = d + r, a = d + r - c
How to determine the subject of a formula?An equation is simply a mathematical formula that expresses the equality of two expressions, using the equals sign as a connection between them.
Given the equation in the question:
c + a = d + r
To solve for a in the equation c + a = d + r, we need to isolate a on one side of the equation by performing the same operation on both sides of the equation.
c + a = d + r
First, we can simplify the right side of the equation by subtracting c from both sides of the equation:
c + a = d + r
c + a - c = d + r - c
Simplify
a + c - c = d + r - c
a = d + r - c
Therefore, the solving for a as the subject of the formula is a = d + r - c.
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A media personality argues that global temperatures are not rising because every year an increase is reported such as 0.09 degrees Celsius. The difference from the previous year is less than the margin of error of about 0.13 degrees C, so that difference should be ignored. What is the best counterargument?
The media personality's argument is flawed because they are basing their conclusion on a single year's data and ignoring the overall trend of increasing global temperatures. To counter this argument, one can make the following points:
1. While it is true that the annual increase in temperature may be less than the margin of error, the trend of increasing temperatures over several decades cannot be ignored. The margin of error is a statistical concept that takes into account the uncertainty in the measurement, but it does not negate the overall trend.
2. Global temperature records show that the Earth's temperature has been steadily rising over the past century, with the 10 warmest years on record occurring since 2005. This trend cannot be explained by natural variability alone and is consistent with the effects of human-caused climate change.
3. The consequences of rising global temperatures, such as melting glaciers, rising sea levels, and more frequent extreme weather events, are already being felt around the world. Ignoring this trend could have devastating consequences for future generations.
In summary, the media personality's argument is based on a flawed understanding of statistics and ignores the overall trend of increasing global temperatures. The best counterargument is to highlight the overwhelming evidence of climate change and its potential consequences.
help quick thanks! math
The values that make the inequality true are given as follows:
-4, -3, -2, -1, 0.
The equivalent inequality is given as follows:
b ≥ -4.
What are the inequality symbols?The four inequality symbols, along with their meaning on the number line and the coordinate plane, are presented as follows:
> x: the amount is greater than x -> the number is to the right of x with an open dot at the number line. -> points above the dashed horizontal line y = x on the coordinate plane.< x: the amount is less than x. -> the number is to the left of x with an open dot at the number line. -> points below the dashed horizontal line y = x on the coordinate plane.≥ x: the amount is at least x. -> the number is to the right of x with a closed dot at the number line. -> points above the solid vertical line y = x on the coordinate plane.≤ the amount is at most x. -> the number is to the left of x with a closed dot at the number line. -> points above the dashed vertical line y = x on the coordinate plane.The inequality for this problem is given as follows:
b/2 ≥ -2.
b ≥ -4.
Which is composed by numbers that are greater than or equal to -4.
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PLEASE HELP
Ronald is painting wooden cylindrical columns before putting them in his yard. They are each 7 feet tall and have a diameter of 2 feet. There are 8 columns in all. How much paint will Ronald need to paint all the surfaces of the 8 Columns? Leave your answer in terms of π with proper units
Ronald will need 128π square feet to paint all the surfaces of the 8 Columns.
How calculate how much paint Ronald will need to paint all the surfaces of the 8 Columns?
The formula for the total surface area of a cylinder is given by:
A = 2πr(r + h)
Where r is the radius and h is the height
In this case, each wooden cylindrical columns is 7 feet tall and have a diameter of 2 feet. Thus:
r = 2/2 = 1 feet and h = 7 feet
Thus, the total surface area of each wooden cylindrical columns will be:
A = 2π * 1 * (1 + 7)
A = 2π * 1 * 8
A = 16π square feet
Then the total surface areas of all the 8 Columns will be:
A = 8 * 16π
A = 128π square feet
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What is the sum of the rational expressions below?
2x-1
7x+x=2
X-2
OA. 9x²-5x+2
7x²-2
OB. 9x²-5x+2
7x²-14x
O C.
O D.
2x²-5x+2
7x²-14x
3x-1
8x-2
Answer:
C
Step-by-step explanation:
To find the sum of the rational expressions, we need to add the two expressions and simplify if possible:
(2x-1)/(7x+x+2) + (x-2)/(8x-2)
Simplifying the denominators, we get:
(2x-1)/(8x+2) + (x-2)/(8x-2)
Now, we need to find the LCD, which is (8x+2)(8x-2) = 64x²-4:
[(2x-1)(8x-2) + (x-2)(8x+2)] / (64x²-4)
Simplifying the numerator, we get:
[16x²-4x-16x+4+8x²-2x+16x-4] / (64x²-4)
Combining like terms, we get:
(24x²-2) / (64x²-4)
Factoring out a 2 from the numerator and denominator, we get:
2(12x²-1) / 2(32x²-2)
Simplifying further, we get:
(12x²-1) / (16x²-1)
Therefore, the sum of the rational expressions is:
12x²-1
-----------
16x²-1
So, the answer is option C.
The lines shown below are perpendicular. If the green line has a slope of
-1, what is the slope of the red line?
-5
5
X
O A1/
A.
114
OB. 4
O C. -1
OD. -4
Answer:
Step-by-step explanation: its c
What is the surface area of the square pyramid?
The surface area of the square pyramid using given dimensions is given by option a. 3,456m².
In the square pyramid,
Using Pythagoras theorem,
Height of the square pyramid is equal to,
In a right angled triangle,
Base = 18m
Hypotenuse = 30m
Height = √ Hypotenuse ² - base ²
Substitute the values we have,
⇒ height = √ 30² - 18²
⇒ height = √576
⇒ height = 24m
Dimensions of square pyramid are,
Base edge 'b' = 36m
height of the pyramid 'h' = 24m
Surface area of square Pyramid = b² + 2b√(b²/4) + h²
Substitute the values we have,
⇒Surface area of square Pyramid
= 36² + 2(36)√((36)²/4) + (24)²
= 1296 + 72√324 + 576
= 1296 + 2160
= 3,456m²
Therefore, the surface area of square Pyramid is equal to option a. 3,456m².
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Identify the mean, median, mode, and range of the data set. 7, 6, 8, 12, 9, 13, 8
The mean is approximately 9, the median is 9, the mode is 8, and the range is 7.
To find the mean, we add up all the numbers in the data set and divide by the total number of numbers:
Mean = (7 + 6 + 8 + 12 + 9 + 13 + 8) / 7 = 63 / 7 ≈ 9
So the mean is approximately 9.
To find the median, we need to arrange the numbers in order from smallest to largest:
6, 7, 8, 8, 9, 12, 13
Since there are an odd number of values in the data set, the median is the middle value, which is 9.
To find the mode, we need to look for the value that occurs most frequently in the data set. In this case, 8 occurs twice, which is more than any other value, so the mode is 8.
To find the range, we need to subtract the smallest value from the largest value:
Range = largest value - smallest value = 13 - 6 = 7
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Ted works for 160 hours in a given month, and his wage rate is $10 per hour. What amount will show as Ted's contribution to Social Security?
OA. $1,500.80
OB. $9.92
O C. $99.20.
OD. $150.08
Assuming the Social Security contribution rate is 6.2% of the wage, Ted's contribution to Social Security can be calculated as follows:
Ted's total wage for the month = 160 hours * $10/hour = $1600
Social Security contribution = 6.2% * $1600 = $99.20
Therefore, the answer is option C. $99.20.
A movie theater charges 11$ for adults and 9$ for seniors. ( children pay the adult price) on a particular day when 294 people paid an admission, the total receipts were 3114. How many paid were adults? How many paid were seniors?
The number of adult that paid is 234 and the number of seniors that pad is 60.
How to find the number of seniors and adult?A movie theatre charges 11$ for adults and 9$ for seniors. On a particular day when 294 people paid an admission, the total receipts were 3114.
Therefore, let's find how many paid for adult and for seniors.
Let
x = number that paid for adult
y = number that paid for senior
Hence, the situation forms the following equation.
x + y = 294
11x + 9y = 3114
multiply equation(i) by 11
11x + 11y = 3234
11x + 9y = 3114
subtract the equation
2y = 120
y = 120 / 2
y = 60
Let's find x
x = 294 - 60
x = 234
Therefore,
number of adults that paid= 234
number of seniors that paid = 60
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[tex]3-3x\leq 4x+7[/tex]
Answer:
We can solve this inequality for x as follows:
3 - 3x ≤ 4x + 7
Subtract 4x from both sides:
3 - 7x ≤ 7
Subtract 3 from both sides:
-7x ≤ 4
Divide both sides by -7, remembering to reverse the inequality since we are dividing by a negative number:
x ≥ -4/7
Therefore, the solution to the inequality is:
x ≥ -4/7
Graph the feasible region and find the values of x and y that give the maximum possible value of g=8x+12y subject to the following constraints:
The solution is:
(a) A (20, 60), B = (0, 0) and C = (80, 0).
(b) The values of x and y that maximize the objective function are
(20, 60).
(c) From graph we can see that (20, 60) is the maximum value of the objective function on the feasible region.
We have,
The set of all possible points of an optimization problem that satisfy the problem's constraints—which may include inequalities, equalities, and integer constraints—is referred to in mathematics as a feasible region, feasible set, search space, or solution space.
Given,
x ≥0, y ≥ 0
x + y ≤ 80
y ≤ 3x
Objective function: z = 250x + 300y
(a) For the given constraints the feasible region is attached below.
The feasible region is ABC.
where, A (20, 60), B = (0, 0) and C = (80, 0).
(b) Now to find the values of x and y which maximize the objective function.
z = 250x + 300y
At A = (20, 60)
z = 250(20) + 300(60) = 5000 + 18000 = 23000
At B = (0, 0)
z = 250(0) + 300(0) = 0
At C(80, 0)
z = 250(80) + 300(0) = 2000 + 0 = 2000
Therefore, the values of x and y that maximize the objective function are (20, 60).
(c) From graph we can see that (20, 60) is the maximum value of the objective function on the feasible region.
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PLSSS HELP ME SOLVE THIS DUE TOMORROW!!!
Each pair of polygons is similar. Find the value of x.
Answer:
7
Step-by-step explanation:
All of the numbers are going up by 4 so what times 4 gives 28
thats 7
What are the polar coordinates of the point Q shown below?
Answer:(−1,−4π/3)
Step-by-step explanation:Note that the point is on the circle whose radius is labeled 1, so r=1 or r=−1. Of the choices available, only an angle of −4π3, drawn from the negative x axis plots at the point Q. So θ=−4π3, and r must be negative, as the angle is measured from the negative x axis. Thus, the polar coordinates are (−1,−4π3).
The town manager of Greenville wants to survey tax-paying residents for their opinion regarding increasing real estate taxes in
support of improvements to the sports field park on the west side of town.
Which method results in a random sample of the population?
A) Ask everyone that enters the Town Hall over the course of one month to complete a survey until 100 surveys have been
completed.
B)Randomly select 100 parents of parents that play soccer for the town, using the town's list of players and a random
number generator
C)Survey every 10th person entering a supermarket on the east side of town until 100 surveys have been completed.
D)Randomly select 100 residents paying real estate taxes, using the town's list of taxpayers and a random number
generator
The method that results in a random sample of the population is D) randomly selecting 100 residents paying real estate taxes, using the town's list of taxpayers and a random number generator.
A random sample is one in which each member of the population has an equal chance of being selected for the survey. Option D satisfies this requirement because it uses a random selection process and targets the specific population of interest (residents paying real estate taxes).
Option A does not result in a random sample because it only includes people who happen to enter Town Hall over the course of one month, which may not be representative of the entire population.
Option B only targets parents of soccer players and may not be representative of the entire population.
Option C also does not result in a random sample because it only includes people entering a specific supermarket on the east side of town, which may not be representative of the entire population.
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A direct variation includes the points (2,18) and (n,9). Find n?
The value of the n is 1
In a direct variation, the relationship between two variables is of the form y = kx, where k is a constant of proportionality.
To find the constant of proportionality k in this problem, we can use the fact that the given points satisfy the equation for direct variation.
(2,18) is one of the given points, so we can substitute these values into the equation y = kx and solve for k:
18 = k(2)
k = 18/2
k = 9
Now that we have found the value of k, we can use it to find n when y = 9:
9 = 9n
n = 1
Therefore, the value of n is 1.
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The work unit which you supervise is responsible for processing fifteen reports per
month.
If your unit has four clerks and the best worker completes 40% of the reports himself,
how many reports would each of the other clerks have to complete if they all do an
equal number?
Each of the other three clerks have to complete 3 reports each.
The top employee finishes 40% of the reports, or: 0.40 x 15 = 6 reports.
Therefore, the other three clerks must finish the remaining 60% of the reports.
Total reports to be completed by the other clerks = 0.60 x 15 = 9 reports
We may distribute the remaining reports evenly among the other clerks since they all have an equal number of reports to complete:
Number of reports each of the other clerks have to complete = 9 reports ÷ 3 clerks = 3 reports
Therefore, each of the other three clerks have to complete 3 reports each.
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The coordinate grid shows points A through K. What point is a solution to the system of inequalities? (1 point) y < −2x + 10 y < 1 over 2x − 2
Answer: (B)
Step-by-step explanation:
To determine which point is a solution to the system of inequalities, we must test each point to see if it satisfies both inequalities. Starting from point A, we plug in its coordinates (2, 9) into both inequalities. However, it does not satisfy y < 1 over 2x − 2. We then move on to point B, which has coordinates (3, 0). Plugging this into both inequalities, we find that it satisfies both of them. Therefore, the point that is a solution to the system of inequalities is point B.
i really need help!!!!!
there are like 5 questions.
Answer:
3
Step-by-step explanation:
The answer is three because u need to simply the fractions
Find the value of x
The value of x for the intersecting chords is derived to be 14 which makes option C correct.
What is the properties of intersecting chordsThe property of intersecting chords states that in a circle, if two chords intersect, the product of the lengths of the segments of one chord is equal to the product of the lengths of the segments of the other chord.
x × 32 = 16 × 28
32x = 448
32x/32 = 144/32 {divide through by 32}
x = 14
Therefore, the value of x for the intersecting chords is derived to be 14
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