To find the volume of the solid generated by revolving the region enclosed by the curves y = √(cos(x)), y = e^x and x = pi/2 around the x-axis, we can use the method of cylindrical shells.
Consider a thin vertical strip of width dx at a distance x from the y-axis. The height of this strip is the difference between the y-coordinates of the two curves:
h = e^x - √(cos(x))
The circumference of the shell is given by 2πx since the strip is at a distance x from the y-axis. Therefore, the volume of the shell is given by:
dV = 2πx * h * dx
= 2πx * (e^x - √(cos(x))) * dx
To find the total volume of the solid, we need to integrate this expression from x=0 to x=pi/2:
V = ∫[0, pi/2] 2πx * (e^x - √(cos(x))) dx
This integral can be evaluated using integration by substitution. Let u = cos(x), then du/dx = -sin(x) and dx = du/-sin(x). Using this substitution, the integral becomes:
V = ∫[1, 0] 2π * (-ln(u)/sin(x)) * (e^x - √(u)) dx
Integrating this expression with respect to x from x=0 to x=pi/2, we get:
V = 2π * [e^(pi/2) - 1 - (4/3) * (1 - sqrt(2))]
Therefore, the volume of the solid is approximately 27.838 cubic units (rounded to three decimal places).
.If $10,000 is deposited in an account earning 5 ¾ % interest compounded monthly. How much money will be in the account in 5 years.
The total amount in the acount in 5 years is approximately $13,321.76.
What is the accrued amount in the account in 5 years?The formula accrued amount in a compounded interest is expressed as;
[tex]A = P( 1 + \frac{r}{n} )^{n*t}[/tex]
Where A is accrued amount, P is principal, r is interest rate and t is time.
Given that:
Principal P = $10,000Compounded monthly n = 12Time t = 5 yearsInterest rate r = 5 3/4% = 5.75%Accrued amount A = ?First, convert R as a percent to r as a decimal
r = R/100
r = 5.75/100
r = 0.0575
Plug the given values into the above formula and solve for A.
[tex]A = P( 1 + \frac{r}{n} )^{n*t}\\\\A = 10000( 1 + \frac{0.0575}{12} )^{(12*5)}\\[/tex]
A = $13,321.76
Therefore, the accrued amount is $13,321.76.
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The Question is inside of the picture
Answer:
it is the opposite way around
Step-by-step explanation:
. The students in a furniture-making class make a tabletop shaped like the figure shown. The tabletop has squares cut out of the corners. a. What is the area of the tabletop?
The area of the tabletop made by the students in the furniture - making class would be 26 ft ²
How to find the area ?We can see that this tabletop made by students in the furniture - making class takes the form of a composite shape with two smaller rectangles and one large rectangle.
The area of the large rectangle is:
= 4 ft x ( 1 + 3 + 1 )
= 4 ft x 5 ft
= 20 ft ²
The area of the two smaller rectangles is:
= 2 x ( 3 ft x 1 ft )
= 2 x 3
= 6 ft ²
The total area of the tabletop is:
= 20 + 6
= 26 ft ²
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What kind of geometric transformation is shown in the line of music?
•
reflection
translation
glide reflection
Find the consumers' surplus at a price level of $1 for the price-demand equation
p= D(x) = 20-0.1x
where p is the price and x is the demand. Do not include a dollar sign or any commas in your answer.
The consumers' surplus at a price level of $1 for the price-demand equation is -1072.5.
Given that price-demand equation p= D(x) = 20-0.1x, we need to find the consumers' surplus at a price level of $1.
So,
From the equation we have,
20-0.1x = 1
0.1x = 19
x = 190
Therefore, the equilibrium point = (190, 1) = (xe, Pe)
Now,
Cs = [tex]\int\limits^{x_e}_0 {D(x)} \ dx\, -Pexe[/tex]
[tex]\int\limits^{190}_0 {20-0.1x} \ dx\, -(190)[/tex]
= 20-0.1{9025}-190
= -1072.5
Hence the consumers' surplus at a price level of $1 for the price-demand equation is -1072.5
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6. Ari, a gardener, estimates the cost of seeding a 150 m by 210 m area with grass seed. He needs 3 pounds of seed per 100 000 square feet. How many pounds of seed will Ari need?
Ari will need 3.6 pound of seed.
We are Given that total number of pounds of grass seed needed
9
Let number of pounds of Bermuda seeds is x
Let number of pounds of Fescue seeds is y
Then sum of both gives equation:
x+y=9
y=9-x...(i)
Given that cost of 1 pound of Bermuda seed = $4.80
Then cost of x pound of Bermuda seed = $4.80x
The cost of 1 pound of Fescue seed = $3.50
Then cost of y pound of Fescue seed = $3.50y
The total cost will be 4.80x + 3.50y
Now combining all three parts, we get equation:
4.80x+3.50y=4.02 x 9
4.80x+3.50y=36.18...(ii)
4.80x+3.50y=36.18
4.80x+3.50(9-x)=36.18
4.80x+31.5-3.50x=36.18
4.80x-3.50x=36.18-31.5
1.3x=4.68
x=3.6
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HOW MANY WAYS ARE THERE TO PICK 3 ASTRONAUTS TO GO TO THE MOON OUT OF 10 CANDIDATES
The number of ways to pick 3 astronauts from 10 candidates can be found using the combination formula, which is:
nCk = n! / (k!(n-k)!)
where n is the total number of candidates, k is the number of candidates to be chosen, and "!" denotes the factorial function.
In this case, we want to choose 3 astronauts from a pool of 10 candidates, so we can plug these values into the formula:
10C3 = 10! / (3!(10-3)!)
= (10 x 9 x 8) / (3 x 2 x 1)
= 120
Therefore, there are 120 ways to pick 3 astronauts to go to the moon out of 10 candidates.
Answer:
120 or 220
Step-by-step explanation:
I need to find both of the solutions to the equation 100+(n-2)^ = 149
The solutions to the equation 100+ (n - 2)² = 149 are n = 9 and n = -5
Finding the solutions to the equation 100+ (n - 2)² = 149From the question, we have the following parameters that can be used in our computation:
The equation 100+ (n - 2)² = 149
Express as
100+ (n - 2)² = 149
Subtract 100 from both sides of the equation
So, we have the following representation
(n - 2)² = 49
Take the square root of both sides
n - 2 = 7 and n - 2 = -7
Add 2 to both sides
n = 9 and n = -5
Hence, the solutions to the equation 100+ (n - 2)² = 149 are n = 9 and n = -5
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A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 106, and the sample
standard deviation, s, is found to be 10.
(a) Construct a 95% confidence interval about u if the sample size, n, is 16.
(b) Construct a 95% confidence interval about u if the sample size, n, is 11.
(c) Construct a 90% confidence interval about μ if the sample size, n, is 16.
(d) Could we have computed the confidence intervals in parts (a)-(c) if the population had not been normally distributed?
In light of this, the 95% confidence interval for is (100.67, 111.33) as s is the sample standard deviation, n is the sample size.
what is standard deviation ?A collection of information's values' standard deviation serves as a gauge for how much variance or dispersion there is. It is a statistical word used to describe the degree to which the individual data points depart as from mean or average value that is contained in the data set. By taking taking square root of the variance—the sum of the squared deviations amongst each point in the data and the mean—we can determine the standard deviation. While a high standard deviation suggests that the data points are widely dispersed, a modest standard deviation suggests that the statistics are close to the mean.
given
(a) When the sample size, n, is 16, we can apply the following formula to create a 95% confidence interval regarding the population mean, :
x ± tα/2 * (s/√n)
where t/2 is the crucial value from the t-distribution with n-1 degrees of freedom and a confidence level of 95%, and x is the sample mean, s is the sample standard deviation, n is the sample size.
We determine that t0.025,15 = 2.131 using a t-distribution table or calculator.
When we enter the values, we obtain:
106 ± 2.131 * (10/√16)
which is equivalent to:
106 ± 5.33
In light of this, the 95% confidence interval for is (100.67, 111.33) as s is the sample standard deviation, n is the sample size.
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step-by-steps to Solve a system of linear equations using matrices.
In order to properly solve a system of linear equations utilizing matrices, you must abide by the below instructions:
How to explain the equationFirst, create a matrix representation of the system of equations.
Second, generate an augmented matrix by merging the coefficient matrix together with the constant matrix.
Third, apply elementary row operations in order to transform the augmented matrix into either row echelon or reduced row echelon form.
Fourth, use back substitution to accurately determine the variable values.
Ultimately, enter this solution into the original equation in order to obtain the primary variable value.
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Solving linear equations using matrices involves steps ranging from creating an augmented matrix, performing row operations, back substitution, and then interpreting results
To solve a system of linear equations using matrices, follow these step-by-step instructions:
Step 1: Write the system of linear equations in matrix form.
Represent the coefficients of the variables as a matrix (called the coefficient matrix), and the constants on the right side of the equations as another matrix (called the constant matrix).
Step 2: Create the augmented matrix.
Combine the coefficient matrix and the constant matrix into a single matrix by appending the constant matrix as an additional column. This combined matrix is called the augmented matrix.
Step 3: Perform row operations to achieve row-echelon form.
Use row operations (swapping rows, multiplying a row by a constant, or adding/subtracting rows) to manipulate the augmented matrix into row-echelon form. Row-echelon form has zeroes below the diagonal and non-zero elements on the diagonal.
Step 4: Perform back-substitution.
Starting from the last row of the row-echelon form matrix, solve for the variables using back-substitution. Substitute the values of the variables you find into the previous rows to determine the remaining variable values.
Step 5: Interpret the results.
Once you have solved all the variables, you have found the solution to the system of linear equations. If there are infinitely many solutions or no solutions, this will be indicated by the row-echelon form.
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Find the length of the missing side
Answer:
24
Step-by-step explanation:
10^2+x^2=26^2
x^2=26^2-10^2
x^2=576
x=[tex]\sqrt{576}[/tex]=24
100 Points! Algebra question. Please show as much work as possible. Thank you!
The first term a₁ of the geometric series is equal to 121.5
How to evaluate for a₁ of the geometric seriesFor a geometric series when the common ratio |r| > 1, then we use the formula for the sum of nth term:
Sₙ = a(rⁿ - 1)/(r - 1)...(1)
The nth term aₙ = arⁿ⁻¹
Thus for Sₙ = 4860 and aₙ = 3280.5, the value of a₁ can be derived as follows:
aₙ = arⁿ⁻¹
aₙ = arⁿ/r = 3280.5
rⁿ = a(r × 3280.5)/a
rⁿ = 9841.5/a
putting 9841.5/a for rⁿ in equation (1) we have;
Sₙ = a[(9841.5/a) - 1]/(r - 1)
Sₙ = (9841.5 - a)/(r - 1)
recall Sₙ = 4860 and r = 3 so;
(9841.5 - a)/2 = 4860
a = 9841.5 - 2(4860)
a = 121.5
Therefore, the first term a₁ of the geometric series is equal to 121.5
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Julieta says that it is not possible to draw a quadrilateral that is not a trapezoid and a parallelogram. Is Julieta correct explain why or why not.
Julieta's claim about the quadrilateral is false.
How to prove or disprove Julieta claim?The statement is given as:
It is impossible to draw a quadrilateral that is not a trapezoid and not a parallelogram.
The condition for a shape to be a quadrilateral is that the shape must have four sides.
An irregular shape that has four sides is a quadrilateral, but neither a quadrilateral nor a parallelogram
Therefore, Julieta's claim is false
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Find tan A for the triangle below. A right triangle. The hypotenuse is 18.03, the side opposite to angle A is 10, and the side adjacent to angle A is 15. a. 1.5 b. 0.667 c. 0.832 d. 1.202
The value of tan A is 0. 667. Option B
How to determine the valueTo determine the value of the identity, we need to take note of the different trigonometric identities.
these identities are;
sinetangentcotangentcosinecosecantsecantWe also have that the ratio for the tangent identity is expressed as;
tan θ= opposite/adjacent
From the information given, we have that;
The hypotenuse is 18.03, the side opposite to angle A is 10, and the side adjacent to angle A is 15
Then, for the identity, we have;
tan A = 10/15
Divide the values
tan A = 0. 667
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7. The plot of land modeled below is composed of a right triangle and a rectangle. If Patrick wants to install a fence around the perimeter of the plot of land, how many feet of fencing will be needed
The number of feet of fencing that will be needed is illustrated below
How many feet of fencing will be needed The feet of fencing that will be needed is the perimeter of the fence
To find the perimeter of a composite figure, we need to add up the lengths of all the sides of the figure.
In this case, we add the side lengths of the rectangle to the side lengths of the right triangle and subtracting the common lengths between both shapes
Take for instance, we have
Right triangle: 3 units, 4 units and 5 unitsRectangle: 4 by 5 unitsCommon segment: 4 unitsSo, we have
Fencing = 2 * (4 + 5) + 3 + 4 + 5 - 2 * 4
Fencing = 22 units
So, the amount of fencing for the assumed dimensions is 22 units
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There are 8 blue marbles, 6 red marbles, 2 green marbles and 4 black marbles in a box.
What is the probability that the marble is not green?
the probability that the marble is not green is 0.9 or 90%. This means that if we were to randomly select a marble from the box, there is a 90% chance that it will not be green.
How to solve probability?
To calculate the probability that a marble is not green, we need to first determine the total number of marbles in the box, which is given by:
Total number of marbles = 8 + 6 + 2 + 4 = 20
Next, we need to determine the number of marbles that are not green. Since there are 2 green marbles, the number of marbles that are not green is given by:
Number of marbles that are not green = 20 - 2 = 18
Finally, we can calculate the probability of selecting a marble that is not green by dividing the number of marbles that are not green by the total number of marbles in the box, as follows:
Probability of selecting a marble that is not green = Number of marbles that are not green / Total number of marbles
= 18 / 20
= 0.9 or 90%
Therefore, the probability that the marble is not green is 0.9 or 90%. This means that if we were to randomly select a marble from the box, there is a 90% chance that it will not be green.
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Please Help Quick ASAP Hurry
Two similar solids have a scale factor of 2 : 5
What is the ratio of their volumes expressed in lowest terms?
A cone with volume 2625 m³ is dilated by a scale factor of 15.
What is the volume of the resulting cone?
a) If two similar solids have a scale factor of 2 : 5, the ratio of their volumes is 8:125, expressed in the lowest terms.
b) If cone with volume 2625 m³ is dilated by a scale factor of 15, the volume of the resulting cone is 10,640,625 m³.
(a) When two solids are similar, their corresponding linear dimensions are in the same ratio, which is known as the scale factor. For example, if two similar solids have a scale factor of 2:5, it means that the corresponding sides of the two solids are in the ratio 2:5.
The volume of a solid is proportional to the cube of its linear dimensions. Therefore, if the linear dimensions of two similar solids are in the ratio 2:5, the ratio of their volumes would be:
(2/5)³ = 8/125
(b) The volume of a cone is given by the formula:
V = (1/3)πr²h
where V is the volume, r is the radius, and h is the height of the cone.
When a cone is dilated by a scale factor of k, its linear dimensions increase by a factor of k, and its volume increases by a factor of k³. Therefore, if the volume of a cone is V and it is dilated by a scale factor of k, the volume of the resulting cone would be:
V' = k³V
In this case, the volume of the original cone is given as 2625 m³, and it is dilated by a scale factor of 15. Substituting these values in the formula, we get:
V' = 15³(2625)
V' = 15³(2625/1)
V' = 10640625
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A triangle is shown in the image 28 inches 32 inches 8 inches what is the area of the triangle
The area of the triangle is 128 square inches.
How to find the area of the triangle
To find the area of a triangle, you can use the formula:
Area = (1/2) * base * height
In this case, the base of the triangle is 32 inches and the height is 8 inches.
Plugging these values into the formula, we get:
Area = (1/2) * 32 * 8
Area = 16 * 8
Area = 128 in²
So, the area of the triangle is 128 square inches.
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A triangle is shown in the image. A triangle with a height of 8 inches. The height is perpendicular to the base labeled 32 inches. The side from the top of the perpendicular side to the base is labeled 28 inches. What is the area of the triangle? 256 in2 224 in2 128 in2 112 in2
A company may acquire property, plant, equipment, and intangible assets for cash, in exchange for a deferred payment contract, by exchanging other assets, or by a combination of these methods. Identify six types of costs that should be capitalized as the cost of a parcel of land. For your answer, assume that the land has an existing building that is to be removed in the immediate future so that a new building can be constructed on the site. At what amount should a company record an asset acquired in exchange for a deferred payment contract? In general, at what amount should assets received in exchange for other nonmonetary assets be valued? Specifically, at what amount should a company value a new machine acquired by exchanging an older, similar machine and paying cash?
Six types of costs are:
Closing costsPurchase costBrokerage commissionsSurveying feesDemolition costsSite preparation costsHow the asset is to be recordedFor assets attained in exchange for a deferred payment contract, the asset should be documented at its fair worth, which is the prevailing market rate. If establishing the fair value of the asset proves to be impracticable, the asset should be recorded based on the current value of upcoming payments due under the deferred payment agreement, stated using an apposite interest rate.
Generally, assets acquired in exchange of other non-monetary commodities should be appraised at their fair worth. If the truthful appraisal of the exchanged assets is uncertain, the assets should be noted down according to the seized amount of the items provided, including any received or paid cash during the transaction.
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Which linear equation is represented in the graph?
A. y = x – 1
B.y = 2x – 1
C. y = x + 1
D. y = 3x – 1
The first three terms of a geometric sequence are as follows.
810, 270, 90
Find the next two terms of this sequence.
Answer:
30 and 10
Step-by-step explanation:
Main concepts:
Concept 1. Geometric Sequence
Concept 2. Common ratio
Concept 3. Finding the next terms
Concept 1. Geometric Sequence
Geometric sequences are a specific type of sequence with a pattern where a specific number is multiplied to each term to get the next term.
For instance, a completely different geometric sequence 1,2,4,8,16,... is geometric because you multiply any term by 2 to get the next term.
Concept 2. Common ratio
In a geometric sequence, this number that you can multiply by to get the next term (in the "1,2,4,8,16,..." example, the number 2) is called the common ratio because taking the ratio of two sequential terms of the sequence (dividing two terms in a row) always gives the same answer:
2/1 = 24/2 = 28/4 = 216/8 = 2This process of finding ratios will yield a common ratio only if the sequence is a Geometric Sequence.
Concept 3. Finding the next terms
Since we're told that the sequence we're given in the question is a Geometric sequence, it must have a common ratio (otherwise, it wouldn't be a geometric sequence).
Find the common ratio by dividing sequential terms:
270/810 = 1/3
90/270 = 1/3
So, for the sequence in the question, the common ratio is 1/3. Each term is multiplied by 1/3 to get the next term in the sequence. (This is equivalent to dividing each term by 3 to get the next term in the sequence, if you prefer division and/or to avoid fractions)
So, to get the next two terms in the sequence, multiply by the common ratio:
90 * 1/3 = 30
30 * 1/3 = 10
So, the next two terms of the sequence are 30 and 10
Question 2 Mohammed and Mira are getting married. They are looking for a catering service for their wedding day. The cost of hiring a catering service to serve food is depends on the number of persons (pax). It costs RM120/pax for 30 persons or less, RM105/pax for 31 to 60 persons, and RM95/pax for 61 to 100 persons. For more than 100 persons, the cost is at RM80/pax. a) Construct the piecewise function for the problem. b) Graph the piecewise functions. c) If they pay RM9025 for the catering service, how many persons that they invite to their wedding? (8 Marks)
a) The piecewise function is 80p, if p > 100 b) For p > 100, the graph will be a straight line passing through the point (100, 100 × 80) with a slope of 8
How to determine the piecewise function for the problema) We can define a piecewise function f(p) to represent the cost of catering service depending on the number of persons (pax).
f(p) =
120p, if p ≤ 30
105p, if 31 ≤ p ≤ 60
95p, if 61 ≤ p ≤ 100
80p, if p > 100
b) To graph the piecewise function, we can plot the points for each of the four parts of the function, and connect them with line segments. The graph will have four segments, each with a different slope.
For p ≤ 30, the graph will be a straight line passing through the origin with a slope of 120.
For 31 ≤ p ≤ 60, the graph will be a straight line passing through the point (31, 31 × 105) with a slope of 105.
For 61 ≤ p ≤ 100, the graph will be a straight line passing through the point (61, 61 × 95) with a slope of 95.
For p > 100, the graph will be a straight line passing through the point (100, 100 × 80) with a slope of 80.
c) To find how many persons they invite to their wedding, we can use the inverse function of f(p) and plug in the given cost of RM9025.
Let C = RM9025, then
120p, if p ≤ 30
105p, if 31 ≤ p ≤ 60
95p, if 61 ≤ p ≤ 100
80p, if p > 100
Case 1: p ≤ 30
120p = C
p = C/120 = 9025/120 = 75.2083
Since p must be an integer, we round up to the nearest integer. Therefore, if they invite 76 persons, the cost of catering service will be more than RM9025.
Case 2: 31 ≤ p ≤ 60
Let x = p - 30, then
105x + 120 × 30 = C
105x = C - 3600
x = (C - 3600)/105 = (9025 - 3600)/105 = 54.5238
Therefore, if they invite 31 + 54 = 85 persons, the cost of catering service will be RM9025.
Case 3: 61 ≤ p ≤ 100
Let x = p - 60, then
95x + 120 × 30 + 105 × 30 = C
95x = C - 9750
x = (C - 9750)/95 = (9025 - 9750)/95 = 0.7632
Therefore, if they invite 60 + 0.7632 × 100 = 137 persons, the cost of catering service will be RM9025.
Case 4: p > 100
Let x = p - 100, then
80x + 120 × 30 + 105 × 30 + 95 × 40 = C
80x = C - 17700
x = (C - 17700)/80 = (9025 - 17700)/80 = -109.375
Since p must be a positive integer, this case is not possible.
Therefore, Mohammed and Mira should invite 85 persons to their wedding to pay RM9025 for the catering service.
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How many different ways are there to arrange the letters in the word MISSISSIPPI?
Answer: 34,650 permutations
Which expression is equivalent to 5(6x + 3y)?
A 11x+3y
B 11x+8y
C 30x+3y
D 30x+15y
Answer:
The answer is **D. 30x+15y**.
```
5(6x + 3y) = 5*6x + 5*3y = 30x + 15y
```
Step-by-step explanation:
1. Distribute the 5:
```
5(6x + 3y) = (5 * 6x) + (5 * 3y)
```
2. Simplify:
```
5(6x + 3y) = 30x + 15y
```
Therefore, 5(6x + 3y) is equivalent to 30x + 15y.
0.0625 What is the equivalent percent? %
Answer:6.25%
Step-by-step explanation:
The service history of the Prego SUV is as follows: 50%will need no repairs during the first year, 35% will have re-pair costs of $500 during the first year, 12% will have repair costs of $1500 during the first year, and the remaining SUVs(the real lemons) will have repair costs of $4000 during their first year. Determine the price that the insurance company should charge for a one-year extended warranty on a Prego SUV if it wants to make an average profit of $50 per polic
The price that the insurance company should charge for a one-year extended warranty on a Prego SUV is $402.
To determine the price that the insurance company should charge for a one-year extended warranty on a Prego SUV, the company needs to calculate the expected value of the repair costs and then add their desired profit to it.
Let's assume that the price for the warranty is x dollars. Then, the expected value of the repair costs for the insurance company would be:
(0.50)(0) + (0.35)($500) + (0.12)($1500) + (0.03)($4000) = $352
This means that on average, the insurance company can expect to pay out $352 in repair costs for each policy sold. To make an average profit of $50 per policy, the insurance company should charge:
x = $352 + $50 = $402
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Given the following similar triangles, what is the area of triangle B?
A 1
B 1.8
C 3.2
D 5
The calculated area of the triangle B is 1.8 square units
What is the area of triangle BFrom the question, we have the following parameters that can be used in our computation:
Triangle A and B
Where
Area of A = 1/2 base * height
Sp, we have
Area of A = 1/2 * 2 * 5
Next, we have
Area of B = Area of A * Scale factor^2
Using the above as a guide, we have the following:
Area of B = 1/2 * 2 * 5 * (3/5)^2
Evaluate
Area of B = 1.8
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Can anyone help me on this
Examine the steps below. Between which two lines was a mistake made?
A.
between line 1 and line 2
B.
between line 2 and line 3
C.
between line 3 and line 4
D.
between line 4 and line 5
Answer:
A and D
Step-by-step explanation:
A- when multiplying -5 and -3 it should be positive 15.
D- when dividing 3 they just outta nowhere forgot about the negative, it should've been -5
A binomial experiment with probability of success p=0.45 and n=7 trials is conducted. What is the probability that the experiment results in exactly 1 success?
The calculated value of the probability that the experiment results in exactly 1 success is 0.08719
Calculating the probability that the experiment results in exactly 1 success?From the question, we have the following parameters that can be used in our computation:
n = 7
x = 1
p = 0.45
The probability is then calculated as
P(x = x) = nCr * p^x * (1 - p)^(n - x)
Substitute the known values in the above equation, so, we have the following representation
P(x = 1) = 7C1 * (0.45)^1 * (1 - 0.45)^(7-1)
Evaluate the expression
So, we have
P(x = 1) = 0.08719
Hence, the probability is 0.08719
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