Hi! im new to this i i coudnt go to school today becuase im sick and im trying to do mah and i cant figure this out anyone can help,

surface area of the prism.
5yd 4yd 2yd

The expected value of the machine after 6 years is approximately $4086.

To find the value of the machine after each year, we can use the formula:

Vn = V0 x (1 - r)ⁿ

where Vn is the value of the machine at the end of year n, V0 is the initial value of the machine, r is the depreciation rate (0.20 in this case), and n is the number of years.

For the first year, we have:

V1 = 25000 x (1 - 0.20)¹ = 20000

For the second year, we have:

V2 = 25000 x (1 - 0.20)² = 16000

Continuing this pattern, we find that the value of the machine at the end of the sixth year is:

V6 = 25000 x (1 - 0.20)⁶ = 4085.76

Find out more about depreciation rates

brainly.com/question/28734384

#SPJ4

Answer:

To find how much greater 4/5 is than 3/4 we can turn them into decimal values:

4/5 = 0.8

3/4 = 0.75

0.8 - 0.75 = 0.05

4/5 is 0.05 or 1/20 greater than 3/4

Answer:

Step-by-step explanation:

Y

Answer:

6.5

Step-by-step explanation:

3 + (and) 7/10 x 5 = 6.5

Hope this helps!

To word his guarantee for free replacement of tires, the mechanic needs to determine the minimum life expectancy that the tires must meet in order to replace approximately 10% of them.

Since the life expectancy of the tires is normally distributed, we can use the standard normal distribution and the z-score formula to determine the minimum life expectancy that corresponds to a probability of 10%:

z = (x - μ) / σ

where z is the z-score, x is the minimum life expectancy, μ is the mean life expectancy of 24,000 miles, and σ is the standard deviation of 2700 miles.

Solving for x, we get:

x = zσ + μ

Using a standard normal distribution table or a calculator, we can find the z-score that corresponds to a probability of 10%, which is approximately -1.28. Plugging this into the formula, we get:

x = (-1.28) * 2700 + 24000

x ≈ 20,856 miles

Therefore, the mechanic should guarantee free replacement of tires that wear out before reaching a mileage of approximately 20,856 miles, in order to replace approximately 10% of the tires.

To learn more about distribution click on,

https://brainly.com/question/17135573

#SPJ4

In the given parallelogram, The value of M is option B) 10 , so values of given angles is 50°.

Parallelogram is type of quadrilateral with two pairs of parallel sides.

The opposite sides of  parallelogram are congruent in length.

The opposite angles of parallelogram are congruent in measure.

The adjacent angles of parallelogram are supplementary (add up to 180 degrees).

The area of parallelogram can be calculated by multiplying the length of its base by its height.

Since ABCD is  parallelogram, then opposite angles are congruent. Therefore, we have:

∠ABD = ∠ABC = 5M° (opposite angles in a parallelogram)

∠ABD = ∠CBD (alternate interior angles formed by transversal BD)

∠CBD = ∠BCD = 3M+20° (opposite angles in a parallelogram)

Thus, we have:

5M° = ∠ABD = ∠CBD = 3M+20°

Solving for M, we get:

5M° - 3M - 20° = 0

2M = 20°

M = 10°

To know more about alternate interior angles visit:

https://brainly.com/question/29114209

#SPJ1

The circumference of a gazebo is 47.1 ft

To calculate the circumference, you can use the formula C=2πr. This formula states that the circumference of a circle is equal to two times the constant π (approximated as 6.28) multiplied by the radius of the circle. The radius of a circle is equal to half of the diameter, so in this case the radius would be 7.5 ft (half of 15 ft).

Therefore, to calculate the circumference of a gazebo with a diameter of 15 ft, you can use the formula C=2πr. Plugging in the radius of 7.5 ft, the equation would become C=2π(7.5) which results in a circumference of 47.12 ft. To round this answer to one decimal place, the final answer is 47.1 ft

To know more on the topic of circumference, click here:

https://brainly.com/question/28757341

#SPJ11

Answer:

16

Step-by-step explanation:

a^2 + b^2 = c^2

a^2= 3^2 = 9

c^2=5^2 = 25

25-9= b^2

25-9=16

b^2 = 16

In response to the stated question, we may state that As a result, the prism value of x is around 6.432 cm.

A prism is a polyhedron with either an n-sided polygonal basis, a second base that is a shifted copy of the original base, and n extra faces (essentially all parallelograms), with two connecting the corresponding sides of the base. Any cross sections those are parallel to the base are translations of it. A prism is a three separate, solid, three-dimensional object with two faces. It has the same merge, flat sides, and similar bases. Faces of a prism are parallelograms or rectangles with out any bases. A prism is a refracting item that is homogeneous, solid, and transparent, contained by planes that are obliquely oriented to one another. A typical prism has two triangular faces and parallel square faces. They are made of either glass or metal.

Two congruent triangles and three rectangular faces make up the right triangular prism.

L is the length of the rectangular faces.

W is the width of the rectangular faces.

H is the height of the rectangular faces and the prism.

B is the triangle's base.

x is the height of the triangles.

SA = 2B + PH

B = 1/2 * base * height

B = 1/2 * 13 cm * x = 6.5x cm²

P = 13 cm + 5 cm + x = 18 cm + x

SA = 2B + PH

376.8 cm² = 2(6.5x cm²) + (18 cm + x)(12 cm)

376.8 cm² = 13x cm² + (18 cm)(12 cm) + 12x cm²

376.8 cm² = 25x cm² + 216 cm²

25x cm² = 376.8 cm² - 216 cm²

25x cm² = 160.8 cm²

x = 6.432 cm

As a result, the value of x is around 6.432 cm.

To know more about prism visit:

https://brainly.com/question/27914026

#SPJ1

Answer:

Step-by-step explanation:

90-28=62

62 is the answer

The value of y when x = 25 is 30

What are direct variations ?

One quantity directly changes in response to a change in another quantity, which is referred to as direct variation. This suggests that if one quantity increases, the other will follow suit and rise in proportion. In a similar manner, if one quantity declines, the other amount also declines.

given y is directly proportional to x then the equation connecting them is

y = kx ← k is the constant of proportionality

To find k use the condition y = 36 when x = 30

So, 36=k(30)

=> k = 36/30 = 1.2

equation of proportionality:

y=1.2x

When x = 25 then

y=1.2(25) = 30

The value of y when x = 25 is 30

To learn more about the variations from the given link

https://brainly.com/question/5247042

#SPJ1

The length of segment AB, is calculated using the formulae velow

Information from the question

a figure of right triangle

The length of AB is worked using SOH CAH TOA

Sin = opposite / hypotenuse - SOH

Cos = adjacent / hypotenuse - CAH

Tan = opposite / adjacent - TOA

The length of AB is solved using sin, cos and tan as follows

Sin = opposite / hypotenuse - SOH

sin C = AB / 10

AB = 10 Sin C

Cos = adjacent / hypotenuse - CAH

cos A = AB / 10

AB = 10 cos A

Tan = opposite / adjacent - TOA

tan C = AB / 8

AB = 8 tan C

Learn more about SOH CAH TOA here:

https://brainly.com/question/29334128

#SPJ1

0%.

The area of a regular hexagon is given by A = (3√3/2)s2, where s is the length of one side of the hexagon. To calculate the percent of the area of the original hexagon that was removed, we need to calculate the area of the dodecagon and subtract it from the area of the hexagon.

The area of a regular dodecagon is given by A = 3(3 + 2√3)s2, where s is the length of one side of the dodecagon.

Let's assume that the side length of the original hexagon is s, and the side length of the resulting dodecagon is sd. Since each of the isosceles triangles removed has base length of s and height of s/2, we can find the side length of the dodecagon as sd = √3s.

Substituting this into the area formula for the dodecagon, we get:
Ad = 3(3 + 2√3)sd2

Ad = 3(3 + 2√3) (√3s)2

Ad = 3(3 + 2√3)(3s2)

Ad = 27s2

Therefore, the area of the dodecagon is 27 times the area of the original hexagon.

The percent of the area of the original hexagon that was removed is given by the following formula:
Percent removed = 100 x (Ahex - Adod) / Ahex

Percent removed = 100 x (Ahex - 27Ahex) / Ahex

Percent removed = 100 x (1 - 27) / 1

Percent removed = 100 x (-26) / 1

Percent removed = -2600 / 1

Percent removed = -2600%

Since the percent of the area of the original hexagon that was removed cannot be negative, the correct answer is 0%.

Learn more about hexagon

brainly.com/question/3295271

#SPJ11

The slope-intercept definition of the linear function is given as follows:

y = -2x - 3.

The slope-intercept representation of a linear function is given by the equation presented as follows:

y = mx + b

The coefficients of the function and their meaning are described as follows:

For this problem, the slope and the intercept are given as follows:

Hence the function is defined as follows:

y = -2x - 3.

More can be learned about linear functions at https://brainly.com/question/24808124

#SPJ1

Answer:

1. 48

2. 103

3. 47

4. 60

hope this helps

Answer:

[tex]\large\boxed{\mathtt{x=44^{\circ}}}[/tex]

Step-by-step explanation:

[tex]\textsf{We are asked to find the value of x.}[/tex]

[tex]\textsf{We should know that} \ \angle \textsf{CAB is an Interior Angle.}[/tex]

[tex]\large\underline{\textsf{What is an Interior Angle?}}[/tex]

[tex]\textsf{An Interior Angle is any angle that is inside of a circle. It's formed by 2 Chords.}[/tex]

[tex]\large\underline{\textsf{What is a Chord?}}[/tex]

[tex]\textsf{A Chord is any line segment inside of a circle. Its' endpoints are on the circumference.}[/tex]

[tex]\textsf{Because Interior Angles are formed by Chords, the arc within its endpoints is}[/tex]

[tex]\textsf{half of the measurement of the Interior Angle.}[/tex]

[tex]\large\underline{\textsf{For this problem;}}[/tex]

[tex]\mathtt{x=\frac{1}{2} \widehat{BC}}[/tex]

[tex]\textsf{We can't find x right away. We should find} \ \mathtt{ \widehat{BC}} \ \textsf{first.}[/tex]

[tex]\textsf{We are given} \ \mathtt{\widehat{AC} = 92^{\circ}.}[/tex]

[tex]\textsf{The Arcs around a circle add up to 360}^{\circ}.[/tex]

[tex]\overline{AB} \ \textsf{is a diameter. The arc will equal 180}^{\circ}.[/tex]

[tex]\large\underline{\textsf{Solve for BC;}}[/tex]

[tex]\mathtt{92^{\circ}+180^{\circ}+\widehat{BC} = 360^{\circ}.}[/tex]

[tex]\large\underline{\textsf{Combine Like Terms:}}[/tex]

[tex]\mathtt{272^{\circ}+\widehat{BC} = 360^{\circ}.}[/tex]

[tex]\large\underline{\textsf{Subtract 272 from both sides of the equation:}}[/tex]

[tex]\mathtt{\widehat{BC} = 88^{\circ}.}[/tex]

[tex]\large\underline{\textsf{Remember that;}}[/tex]

[tex]\mathtt{x=\frac{1}{2} \widehat{BC}}[/tex]

[tex]\large\underline{\textsf{Substitute:}}[/tex]

[tex]\mathtt{x=\frac{1}{2} (88^{\circ})}[/tex]

[tex]\large\underline{\textsf{Multiply:}}[/tex]

[tex]\large\boxed{\mathtt{x=44^{\circ}}}[/tex]

The exponential model for the population of catfish in Athena Lake is:

P(t) = 800 × e^{-0.0513t}

What is exponential ?

an exponential function is a function of the form:

f(x) = a^{x}

where a is a positive constant called the base, and x is the exponent. The base represents the factor being repeatedly multiplied, while the exponent represents the number of times the base is being multiplied by itself.

To model the decreasing population of catfish in Athena Lake, we can use an exponential function of the form:

P(t) = P0 × e^{-rt}

where:

P(t) is the population at time t

P0 is the initial population

r is the annual growth rate (in this case, a negative value representing a decreasing population)

e is the mathematical constant e (approximately 2.71828...)

t is the time elapsed (measured in years)

In this case, we know that the initial population P0 is 800, and that the current population P(1) is 760 (since Franklin started monitoring one year ago and estimates the population has decreased to 760). So we can use these values to solve for the annual growth rate r:

760 = 800 × e^{-r}

Dividing both sides by 800, we get:

0.95 = e^{-r}

Taking the natural logarithm (ln) of both sides, we get:

ln(0.95) = -r

Solving for r, we get:

r ≈ 0.0513

So the exponential model for the population of catfish in Athena Lake is:

P(t) = 800 × e^{-0.0513t}

where t is the time elapsed (measured in years).

To learn more about exponential visit the link:

https://brainly.com/question/11975096

#SPJ9

For each of the businesses below:

Business A: Loss (Income £100 - Expenditure £200 = -£100)

Business B: Loss (Income £49.85 - Expenditure £71.24 = -£21.39)

Business C: Profit (Income £21,357 - Expenditure £7,028 = £14,329)

Percent is a term used to describe a fraction or ratio as a portion of 100. It is commonly denoted by the symbol %, which means "per hundred." For example, the percentage 50% means 50 out of 100 or 0.5 as a fraction. Percentages are often used to express change, growth, or comparison between different quantities. Percentages are commonly used in many fields, including finance, science, and statistics, to express values in a more convenient and easily interpretable way.

Here,

Business A:

Income = £100

Expenditure = £200

Profit/Loss = Income - Expenditure = £100 - £200 = -£100

Since the result is negative, the business made a loss.

Business B:

Income = £49.85

Expenditure = £71.24

Profit/Loss = Income - Expenditure = £49.85 - £71.24 = -£21.39

Since the result is negative, the business made a loss.

Business C:

Income = £21,357

Expenditure = £7,028

Profit/Loss = Income - Expenditure = £21,357 - £7,028 = £14,329

Since the result is positive, the business made a profit.

To know more about percent,

https://brainly.com/question/29172752

#SPJ1

As a result, (x, y) = is the answer to a set of equations. (-17, -3). There aren't an endless number of answers because there is a single one.

The meaning of an equation in algebra is a mathematical assertion that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two expressions 3x + 5 and 14, which are split by the 'equal' symbol.

The statements that are true about this system of equations are:

The x-variable will be eliminated when adding the system of equations.

There are infinitely many solutions to the system of equations.

To eliminate the x-variable, we can add the two equations as follows:

(2x - 7y) + (-2x + 11y) = -13 + 1

Simplifying the left-hand side and the right-hand side gives:

4y = -12

Dividing both sides by 4 yields:

y = -3

Substituting y = -3 into either of the original equations gives:

2x - 7(-3) = -13

Simplifying this equation yields:

2x + 21 = -13

Subtracting 21 from both sides yields:

2x = -34

Dividing both sides by 2 yields:

x = -17

Therefore, the solution to the system of equations is (x, y) = (-17, -3). Since there is a unique solution, there are not infinitely many solutions.

The statement "The sum of the system of equations is 4y = -12" is false since the sum of the equations does not simplify to that expression.

The statement "x = 17" is false since the correct solution is x = -17.

The statement "The y-variable will be eliminated when adding the system of equations" is false since adding the equations only eliminated the x-variable.

To know more about Equation visit:

https://brainly.com/question/22688504

#SPJ1

The false statement regarding the normal distribution is given as follows:

99.72% of the time the random variable assumes a value within plus or minus 1 standard deviation of its mean.

The z-score of a measure X of a normally distributed variable that has mean represented by [tex]\mu[/tex] and standard deviation represented by [tex]\sigma[/tex] is obtained by the equation presented as follows:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The percentage of scores within 1 standard deviation of the mean is obtained considering that:

Hence the percentage is given as follows:

84.13 - 15.87 = 68.26%, which is different of 99.72%.

More can be learned about the normal distribution at https://brainly.com/question/25800303

#SPJ1

The correct answer is that all of the following are characteristics of the normal probability distribution as given below.

A subfield of statistics known as probability studies random events and their likelihood of happening.

The statement "99.72% of the time the random variable assumes a value within plus or minus 1 standard deviation of its mean" is actually a characteristic of the normal probability distribution.

The correct answer is that all of the following are characteristics of the normal probability distribution:

To know more about probability, visit:

https://brainly.com/question/13604758

#SPJ1

The true statements are:

B. 4.5 = 4.50 (both sides are equal to 4.5, with the same number of significant figures)

D. 1.51 > 1.15 (1.51 is greater than 1.15)

What is system of inequalities ?

A system of inequalities is a set of two or more inequalities with one or more variables. The solution to a system of inequalities is the set of all possible values of the variables that satisfy all the inequalities in the system simultaneously. In other words, it is the intersection of the solution sets of each individual inequality in the system.

According to the question:
The two correct statements are B and D.

B is true because trailing zeros after a decimal point do not change the value of a number, so 4.5 is equal to 4.50.

D is true because 1.51 is greater than 1.15, as the digits to the right of the decimal point represent fractions of a whole number, so 0.51 is greater than 0.15.

A is false because 1.01 is greater than 0.99.

C is false because 3.5 is greater than 3.39.

E is false because 2.09 is not equal to 2.9.

To know more about inequalities visit:

brainly.com/question/29785389

#SPJ1

We can use the fact that the ratio of the corresponding lengths in two similar shapes is equal to the ratio of their corresponding surface areas. Since we are looking for the surface area of a similar cone with radius 9 inches, we need to find the ratio of the surface area of that cone to the surface area of the original cone with radius 3 inches.

The surface area of a cone is given by:

surface area = πr(r + l)

where r is the radius and l is the slant height.

For the original cone with radius 3 inches and slant height 12 inches, we have:

surface area of original cone = π(3)(3 + 12) = 45π

For the similar cone with radius 9 inches, we can find the slant height using the fact that the slant height and radius are proportional in similar cones. Specifically, the ratio of the slant heights is equal to the ratio of the radii. Therefore:

slant height of similar cone = (9/3)(12) = 36 inches

Using this slant height and the radius of 9 inches, we can find the surface area of the similar cone:

surface area of similar cone = π(9)(9 + 36) = 405π

Finally, we can find the ratio of the surface areas:

ratio of surface areas = surface area of similar cone / surface area of original cone

= (405π) / (45π)

= 9

Therefore, the surface area of the similar cone is 9 times the surface area of the original cone. The exact surface area of the similar cone is 9 times the surface area of the original cone, or:

9 × 45π = 405π square inches

Answer:405pi in^2

Step-by-step explanation:

The test static for sample of 50 men, 44 said that they had less leisure time today than they had 10 years ago is 0.2377.

A number derived from a statistical test of a hypothesis is the test statistic. It displays how closely your actual data fit the distribution predicted by the statistical test's null hypothesis.

In order to determine whether to accept or reject your null hypothesis, the test statistic is utilised to calculate the p value of your findings.

In a sample of 50 men, 44 said that they had less leisure time today than they had 10 years ago.

In a sample of 50 women, 48 women said that they had less leisure time than they

had 10 years ago.

p-hat men:: 44/50 = 0.22

p-hat women:: 48/50 = 0.24

Test Stat:

z(0.24-0.22) =[tex]\frac{0.02}{\sqrt{[(0.22*0.78/50)+(0.24*0.76/50)]} }[/tex] = 0.2377

At [tex]\alpha[/tex] = .05, is there a difference in the proportions between the men and women

[tex]p-value = 2*P(z > 0.2377) = 0.8121[/tex]

Since the p-value is greater than 5%, fail to reject H.

H: p(men)-p(women) = 0

Ha: p(men)-p(women) # 0 = .05, is there a difference in the proportions between the men and women

p-value = 2*P(z > 0.2377) = 0.8121

Since the p-value is greater than 5%, fail to reject H.

H: p(men)-p(women) = 0

Ha: p(men)-p(women) # 0

Learn more about Test statistic:

https://brainly.com/question/15110538

#SPJ4

Complete question:

In a sample of 50 men, 44 said that they had less leisure time today than they had 10 years ago. In a sample of 50 women, 48 women said that they had less leisure time than they had 10 years ago. What is the test statistic? At  [tex]\alpha[/tex] = .05, is there a difference in the proportions between the men and women?

Answer:

A = 21 units²

Step-by-step explanation:

the area (A) of a parallelogram is calculated as

A = bh ( b is the base and h the perpendicular height between parallel sides )

here b = 7 and h = 3 , then

A = 7 × 3 = 21 units²

Answer: 12 cupcakes

Step-by-step explanation:

24/8 = 3

3x4=12

Answer:

The answer to your problem is, 12

Step-by-step explanation:

First, we want to know the problem:

24 ÷ 8 = ?

? = 3

Next, we can do some easy multiplication such as the following:

3 x 4 = ?

? = 12.

Thus, the answer to your problem is, 12

If the class has 50 students, and 10 of them are math majors There are a total of 50! (50 factorial) ways to line up the 50 students.

          To ensure that all the 10 math majors are in the front half of the line, the first 10 positions in the line must be filled by the math majors, leaving 40 positions in the second half to be filled by the remaining 40 students.

       Thus, there are 10! (10 factorial) ways to fill the first 10 positions and 40! (40 factorial) ways to fill the second half.

       Therefore, the total number of ways to line up the students so that all the math majors are in the front half of the line is

          10! × 40! = 30,240,000.

Learn more about students of math majors at: https://brainly.com/question/23693778

#SPJ11

Answer:

To solve the problem, we need to first determine the value of the quarters Anna has. Since there are 5 quarters, we have:

5 quarters = 5 x $0.25 = $1.25

Thus, Anna has $2.00 - $1.25 = $0.75 left. We can find the maximum number of dimes she can have by dividing this amount by the value of a dime, which is $0.10. Therefore:

$0.75 ÷ $0.10 = 7.5

Since Anna cannot have a fraction of a dime, we round down to the nearest whole number to get a maximum of 7 dimes. Therefore, the answer is option B, 5.