Find number of sides of a regular polygon if each of its exterior angle is 36.​

Answer:

It would be D.

This is a box of 100 squares, and you can see that there are 10 shaded per row. You can see that there are 8 rows completely shaded, plus 2 of them shaded in another row.

8 x 10 = 80

80 + 2 = 82

Now, to turn it into a decimal, turn the number 82 into a decimal, which is 0.82

Answer:

8yz+xy

like terms and then solve it

The simplified expression is xy + 8yz

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between. The mathematical operators can be of addition, subtraction, multiplication, or division.

For example, x + y is an expression, where x and y are terms having an addition operator in between. In math, there are two types of expressions, numerical expressions - that contain only numbers; and algebraic expressions- that contain both numbers and variables.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division. The terms involved in an expression in math are:

Constant: A constant is a fixed numerical value.

Variable: A variable is a symbol that doesn't have a fixed value.

Term: A term can be a single constant, a single variable, or a combination of a variable and a constant combined with multiplication or division.

Coefficient: A coefficient is a number that is multiplied by a variable in an expression.

Given:

3xy+5yz-2xy +3yz

Now,

=3xy - 2xy + 5yz+ 3yz

=xy + 8yz

Hence, the simplifies expression is xy + 8yz.

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Answer:

\(4x² + 2y² + x²y² + 8 \\arranging \: them \\ 4 {x}^{2} + {x}^{2} {y}^{2} + 2 {y}^{2} + 8 \\ {x}^{2} (4 + {y}^{2} ) + 2(y^{2} + 4) \\ ({x}^{2} + 2)(y^{2} + 4)\)

Answer:

(4 + y^2) ( x^2 + 2)

Step-by-step explanation:

irst rearrange the terms

4x^2 + x^2 y^2 + 2y^2 + 8

then factorise

x2 ( 4 + y^2) + 2 ( y^2 + 4)

group like terms together and insert the remaining terms into a bracket

(4 + y^2) ( x^2 + 2)

The probability that the mean of the number of hours the 20 children watch TV will be greater than 26.3 hours is 0.0057.

We can solve this problem by using the Central Limit Theorem, which states that if a sample is large enough, the sampling distribution of the sample mean will be approximately normal, regardless of the distribution of the original variable.

First, we need to find the standard error of the mean, which is given by the formula:

standard error = standard deviation / sqrt(sample size)

In this case, the standard error is:

standard error = 3 / sqrt(20) = 0.671

Next, we need to standardize the sample mean using the formula:

z = (sample mean - population mean) / standard error

In this case, the population mean is 25 and the sample mean is 26.3. Thus, the z-score is:

z = (26.3 - 25) / 0.671 = 2.538

Finally, we need to find the probability that a standard normal distribution is greater than 2.538. This can be found using a standard normal table or a calculator and is approximately 0.0057.

Therefore, the probability that the mean of the number of hours the 20 children watch TV will be greater than 26.3 hours is 0.0057.

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(a) the required monthly loan payment on the car is approximately $528.23, (b)your friend still owes approximately $17,833.86 on the car loan after the 24th monthly payment, (c)it will take your friend approximately 23 months (rounded up to the nearest month) to pay off the remaining loan she owes after the 24th payment, given the increased monthly payment of $100.

(a) The required monthly loan payment on the car can be calculated using the formula for the monthly payment on a loan. Given a car loan of $28,000, financed at an interest rate of 0.50% per month for 60 months, the monthly payment can be determined using the following formula:

Monthly Payment = (Loan Amount * Monthly Interest Rate) / (1 - (1 + Monthly Interest Rate)^(-Number of Months))

Plugging in the values, we have:

Monthly Payment = (28000 * 0.005) / (1 - (1 + 0.005)^(-60))

Calculating this, the required monthly loan payment on the car is approximately $528.23.

(b) After making the 24th monthly payment, your friend still owes a remaining balance on the car loan. To calculate this, we need to determine the remaining balance based on the number of payments made and the original loan amount. We can use the formula:

Remaining Balance = Loan Amount * (1 + Monthly Interest Rate)^Number of Payments - (Monthly Payment * ((1 + Monthly Interest Rate)^Number of Payments - 1) / Monthly Interest Rate)

Plugging in the values, we have:

Remaining Balance = 28000 * (1 + 0.005)^24 - (528.23 * ((1 + 0.005)^24 - 1) / 0.005)

Calculating this, your friend still owes approximately $17,833.86 on the car loan after the 24th monthly payment.

(c) If your friend decides to pay $100 more each month after the 24th payment, we can calculate the number of months it will take her to pay off the remaining loan balance. Using the increased monthly payment, we can calculate the new remaining balance and divide it by the increased monthly payment to determine the number of months needed to pay off the loan.

New Remaining Balance = Remaining Balance - (Monthly Payment + Additional Monthly Payment) * ((1 + Monthly Interest Rate)^Number of Payments - 1) / Monthly Interest Rate

Number of Months = New Remaining Balance / (Monthly Payment + Additional Monthly Payment)

Plugging in the values, we have:

New Remaining Balance = 17,833.86 - (528.23 + 100) * ((1 + 0.005)^x - 1) / 0.005

Number of Months = New Remaining Balance / (528.23 + 100)

By solving the equation, it will take your friend approximately 23 months (rounded up to the nearest month) to pay off the remaining loan she owes after the 24th payment, given the increased monthly payment of $100.

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Answer:

\(\boxed {\boxed {\sf D. \ r= -0.9874}}\)

Step-by-step explanation:

The correlation coefficient is a number between -1 and 1. It tells us the strength of the linear association and the direction.

We want to find the r-value indicating a strong negative correlation. A negative number indicates a negative correlation. Therefore, choices A and C can be eliminated, because they are positive numbers.

Now we are left with B (-0.1859) and D (-0.9874). The closer the r-value is to -1/1, the stronger the correlation. -0.9874 is much closer to -1 than -0.1859, so choice D is the stronger correlation.

Answer:

1/2

Step-by-step explanation:

You could formalize your answer by setting up a proportion.

3 boxes /6 months = x / 1 month

Cross multiply

3 boxes * 1 month = 6 months * x

the months cancel out.

Divide by 6

x = 3 boxes / 6

x = 1/2

Answer:

Equations of parallel and perpendicular lines The equation of a straight line is represented as \ (y=ax+b\) which defines the slope and the \ (y\)-intercept. Here \ (a\) represents the slope of the line. Since two parallel lines never intersect and have the same slope, their slope is always equal.

Step-by-step explanation:

The first step to conducting a statistical study is to clearly define the research question or problem.

This involves identifying the population of interest, the variables to be measured, and the hypothesis or objective of the study. Once the research question is clearly defined, the next step is to design the study, including selecting an appropriate sample size, choosing a sampling method, and determining the data collection method.

It is also important to consider potential sources of bias and confounding factors that may impact the study results. Overall, a well-designed statistical study should be able to produce reliable and accurate results that can be used to draw meaningful conclusions about the population of interest.

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The Euler method with a step size of h = 0.5, the approximate numerical solution for the ODE is y(1.5) ≈ -1.1198 x 10^9.

To solve the ODE using the Euler method, we divide the interval into smaller steps and approximate the derivative with a difference quotient. Given that the step size is h = 0.5, we will perform three steps to obtain the numerical solution.

we calculate the initial condition: y(0) = -2.

1. we evaluate the derivative at t = 0 and y = -2:

y' = 3(0) - 10(-2)² = -40

Next, we update the values using the Euler method:

t₁ = 0 + 0.5 = 0.5

y₁ = -2 + (-40) * 0.5 = -22

2. y' = 3(0.5) - 10(-22)² = -14,860

Updating the values:

t₂ = 0.5 + 0.5 = 1

y₂ = -22 + (-14,860) * 0.5 = -7492

3. y' = 3(1) - 10(-7492)² ≈ -2.2395 x 10^9

Updating the values:

t₃ = 1 + 0.5 = 1.5

y₃ = -7492 + (-2.2395 x 10^9) * 0.5 = -1.1198 x 10^9

Therefore, after performing three steps of the Euler method with a step size of h = 0.5, the approximate numerical solution for the ODE is y(1.5) ≈ -1.1198 x 10^9.

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Answer:

1,000,000 cm³

Step-by-step explanation:

A cube has 3 dimensions of equal measure:  length, width and height

To determine the volume of a cube, we multiply the dimensions:

⇒ volume of a cube = length × width × height

1 metre = 100 centimetres

Therefore, for a cube with a length, width and height of 100 cm:

⇒ volume = 100 cm × 100 cm × 100 cm

                 = 1,000,000 cm³

Answer:

-32678141

Step-by-step explanation:

Answer:

Internal height is approximately 28.5714285714286 cm

Internal surface area is roughly 9628.57142857143 square cm

Round the values however you need to

==========================================================

Step-by-step explanation:

Work Shown:

1 L = 1000 mL

1 L = 1000 cm^3

60 L = 60,000 cm^3 (multiply both sides by 60)

The cooler has volume of 60,000 cubic cm. Let V = 60000

Assuming the cooler is a rectangular prism (aka a block), then we can say

volume = length*width*height

V = L*W*H

60000 = 60*35*H

60000 = 2100H

2100H = 60000

H = 60000/2100

H = 28.5714285714286 which is approximate

And the surface area (SA) is

SA = 2*(LW + LH + WH)

SA = 2*(60*35 + 60*28.5714285714286 + 35*28.5714285714286)

SA = 9628.57142857143 which is also approximate

Units for the surface area are in square centimeters.

Answer:

7

Step-by-step explanation:

Answer:

no answer

Step-by-step explanation:

2(-2)+3=-2

simplify

-4+3=-2

simplify

-1=-2

No answer

If there's something along the lines of no answer and it's multiple choice click that.

Answer:1=a, 2=b, 3=c

Step-by-step explanation:

just smart like that

Answer:

Step-by-step explanation:

D the width is higher than the pressure of it (32h) so that would mean younger 2) 3425 psi of worth

a) 27 business owners plan to provide a holiday gift to their employees.

b) Using a z-table, the p-value for z = -0.1583 is 0.4371 (rounded to four decimal places).

c) The smallest level of significance for which we could draw this conclusion would be equal to the calculated p-value, which is 0.4371 (rounded to four decimal places).

(a) In the survey of 60 business owners, 45% plan to provide a holiday gift to their employees. To find the number of business owners planning to give gifts, multiply the total number of business owners (60) by the percentage (0.45): 60 x 0.45 = 27 business owners plan to provide a holiday gift to their employees.

(b) To compute the p-value for a hypothesis test to determine if the proportion of business owners providing holiday gifts has decreased from last year, first, find the test statistic:

z = (p_sample - p_population) / sqrt((p_population * (1 - p_population)) / n)
z = (0.45 - 0.46) / sqrt((0.46 * (1 - 0.46)) / 60)
z = -0.01 / 0.0632 = -0.1583

Using a z-table, the p-value for z = -0.1583 is 0.4371 (rounded to four decimal places).

(c) Since the p-value (0.4371) is greater than the level of significance α=0.05, we fail to reject the null hypothesis. Thus, we cannot conclude that the proportion of business owners providing gifts has decreased based on the given level of significance.

The smallest level of significance for which we could draw this conclusion would be equal to the calculated p-value, which is 0.4371 (rounded to four decimal places).

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Answer:

\(D(x)= x\sqrt{2}\)

Step-by-step explanation:

Given

\(Side = x\)

Required

Represent the diagonal as a function

Using Pythagoras theorem, the diagonal is:

\(D^2= Side^2 + Side^2\)

Substitute x for Side

\(D^2= x^2 + x^2\)

\(D^2= 2x^2\)

Take the square root of both sides

\(D= \sqrt{2x^2\)

Split

\(D= \sqrt{2} * \sqrt{x^2\)

\(D= \sqrt{2} * x\)

\(D= x\sqrt{2}\)

Express as a function.

\(D(x)= x\sqrt{2}\)

Answer:

Step-by-step explanation:

Hope it helped

Answer:

√65 (units)

Step-by-step explanation:

A(3, -2) and B(7, 5)

AB=√ [(xB-xA)²+(yB-yA)²]

AB=√ [(7-3)²+(5+2)²]=√(16+49)

AB=√65 (units)

The two events which are independent are the carne-asada burrito (B) and the customer requested pinto beans (D).

Independent events are those events whose occurrences do not depend on the other events.

A burrito restaurant used the given table to keep track of the numbers of different types of burritos that were sold and the kinds of beans that people requested.

Consider the following events:

The probability of event A is,

\(P(A)=\dfrac{83}{240}\)

The probability of event B is,

\(P(B)=\dfrac{80}{240}=\dfrac{1}{3}\)

The probability of event C is,

\(P(C)=\dfrac{45}{240}=\dfrac{3}{16}\)

The probability of event D is,

\(P(A)=\dfrac{72}{240}=\dfrac{3}{10}\)

If the probability of an event is calculated given that the other is happened, only the probability of event B and D we get such that,

\(P(B\cap D)=P(B).P(D)\\\dfrac{24}{240}=\dfrac{1}{3}\times \dfrac{3}{10}\\\dfrac{1}{10}=\dfrac{1}{10}\)

Thus, the two events which are independent are the carne-asada burrito (B) and the customer requested pinto beans (D).

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Answer: D

Step-by-step explanation:

Answer:

d) y = x-12

Step-by-step explanation:

x is the input

y is the output

d) 4 = 16 - 12

The input variable x is 16 and the output variable y is 4 in valid only in the equation y = x - 12.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Given that the input variable x equals 16 and the output variable y equals 4,

Then, by substituting these values in the given equations, we get to know that

This condition is only applicable to the equation y = x - 12.

Hence, the correct expression is y = x-12.

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Answer:

The solution of the equation is f(x)=-2x+3. Go into desmos graphing calculator and there is your answer.

Step-by-step explanation:

Hope this helps!

The graphical representation of f(x) = - 2(x + 4) + 5 is plotted. The slope of the line is -2 and y - intercept is -3.

The general equation of a straight line is -

y = mx + c

where -

m is the slope of line

c is the y - intercept

Given is a function → f(x) = - 2(x + 4) + 5

In order to plot the graph of this function, we will simplify the expression.

f(x) = - 2(x + 4) + 5

f(x) = -2x - 8 + 5

f(x) = -2x - 3

f(x) = (-2)x + (-3)

Now, we can plot this function on graph. Its slope will be -2 and y - intercept will be -3. Refer to the graph attached.

Therefore, the graphical representation of f(x) = - 2(x + 4) + 5 is plotted. The slope of the line is -2 and y - intercept is -3.

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Therefore, the solution to the given system of linear equations is: x = 2y - 4 = 2(5/3) - 4 = -2/3 y = 5/3 z = 8/3

The given system of linear equations is, 2x - 5y + z = -9 (i) x + 4y - 6z = 2 (ii)

3x - 4y - 2z = -10 (iii)

Let's solve this system using the elimination method. From equations (i) and (iii), we have:

2x - 5y + z = -9 ........(i)

3x - 4y - 2z = -10.......(iii)

We can eliminate z from these equations by multiplying equation (i) by 2 and adding it to equation (iii) as shown:4x - 10y + 2z = -18 (2i)3x - 4y - 2z = -10........(iii)

7x - 14y = -28............(iv)

Divide equation (iv) by 7, and we get

x - 2y = -4....................(v)

Now let's eliminate z from equations (ii) and (iii). We can do this by multiplying equation (ii) by 2 and adding it to equation (iii) as shown:

x + 4y - 6z = 2.......(ii)

3x - 4y - 2z = -10.......(iii)

2x + 8y - 12z = 4.......(ii)

3x - 4y - 2z = -10.......(iii)

5x + 4y - 14z = -6.......(vi)

Now, let's eliminate y from equations (v) and (vi). To do this, we can multiply equation (v) by 4 and add it to equation (vi) as shown:

4x - 8y = -16..........(v)

5x + 4y - 14z = -6.......(vi)

9x - 14z = -22.........(vii)

We can now solve for z by substituting equation (vii) into equation (iv). Therefore:

9x - 14z = -22 (vii)

x - 2y = -4 (v)

Solve equation (v) for x as follows:x = 2y - 4Substitute this into equation (vii) to get:

9(2y - 4) - 14z = -22

Simplify and solve for z as follows:

18y - 36 - 14z = -22 18y - 14z = 14 9y - 7z = 7

Now, we can substitute the values we have obtained for x and z into equation (ii) to solve for y as follows:

x + 4y - 6z = 2 (ii)2y - 4 + 4y - 6z = 2 6y - 7z = 3 6y - 7(1) = 3 6y - 7 = 3 6y = 10 y = 5/3

Now we can substitute x = 2y - 4 and y = 5/3 into any of the three original equations to solve for z. Using equation (i), we get:

2x - 5y + z = -9 2(2y - 4) - 5y + z = -9 4y - 8 - 5y + z = -9 -y + z = 1 z = y + 1 = 5/3 + 1 = 8/3.

Hence, the main answer is

x = -2/3, y = 5/3, z = 8/3.

Therefore, the solution to the given system of linear equations is: x = 2y - 4 = 2(5/3) - 4 = -2/3 y = 5/3 z = 8/3.

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Answer:

50/77

Step-by-step explanation:

(1÷2 3/4)+(1÷3 1/2)

2 3/4 is same as 11/44

1/2 is same as 7/2

so to divide fraction you have to flip the second number and multiply

so 1 times 4/11=4/11

and 1 times 2/7=2/7

4/11 +2/7=28/77+22/77=50/77

1. No environmentally produced diseases are inherited afflictions. Some psychological disorders are not inherited afflictions. Therefore, some psychological disorders are environmentally produced diseases. This statement invalid.

2. All watercolors are paintings. Some watercolors are masterpieces. Therefore, some paintings are masterpieces. This statement is invalid.

3. No illegal aliens are persons who have a right to welfare payments, and some migrant workers are illegal aliens. Thus, some persons who have a right to welfare payments are migrant workers. This statement is valid.

4. No insects that eat mosquitoes are insects that should be killed. All dragonflies are insects that eat mosquitoes. Therefore, no dragonflies are insects that should be killed. This statement is invalid.

5. All corporations that overcharge their customers are unethical businesses. Some unethical businesses are investor-owned utilities. Therefore, some investor-owned utilities are corporations that overcharge their customers. This statement is valid.

A Venn diagram uses overlapping circles and other shapes to show logical relationships between two or more groups of elements. It often helps to organize things graphically by highlighting similarities and differences between elements.

Venn diagrams, also known as set diagrams or logic diagrams, are widely used in mathematics, statistics, logic, education, linguistics, computer science, and economics. Venn diagrams became part of his "new mathematics" curriculum in the 1960s, so many people encounter them for the first time when learning mathematics or logic in school. These can be simple diagrams spanning 2 or 3 sets of a few items, or can be very sophisticated including 3D presentations as you progress to 6 or 7 sets or more. There is also They are used to reason about and represent how objects are related to each other within a particular "universe" or segment. Venn diagrams are widely used in presentations and reports as they allow users to visualize data in a clear and powerful way. These are closely related to Euler diagrams, differing in that the set is omitted if it has no elements. Venn diagrams show relationships even when the set is empty.

Suppose our universe is made up of pets and we want to compare the types of pets that families agree on.

Set A contains my favorites: dogs, birds, hamsters.

Set B contains Family B's preferences: dog, cat, fish.

Set C contains family C's favorites: dog, cat, turtle, and snake.

Overlapping or intersecting 3 sets contains only Dog. it's like having a dog

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Answer:

1/15

Step-by-step explanation:

1/5+3+2        all of the marbles

2/10              odds of drawing an orange marble(bc 2 orange marble)

3/9                 because to get 3 green and 1 marble is removed and 9 is total          marbles left

2/10*3/9=1/15  muliply  odds because 2 draws of marbles    

A continuous variable is a variable that can take on any value within a certain range, and often takes the form of real numbers but a discrete variable is a variable that can only take on specific values within a certain range, and often takes the form of integers

Continuous and discrete variables are two types of quantitative variables in statistics.

A continuous variable is a variable that can take on any value within a certain range, and often takes the form of real numbers. Examples of continuous variables include height, weight, time, temperature, and distance. These variables can be measured using instruments with varying degrees of precision, but they can theoretically take on an infinite number of values.

On the other hand, a discrete variable is a variable that can only take on specific values within a certain range, and often takes the form of integers. Examples of discrete variables include the number of siblings a person has, the number of cars in a parking lot, and the number of points a basketball team scores in a game. These variables can only take on a limited number of values, and often represent counts or whole numbers.

The main difference between continuous and discrete variables is the way they can be measured and the number of possible values they can take. Continuous variables can take on an infinite number of values and can be measured with varying degrees of precision, while discrete variables can only take on specific values and are often measured with exact precision.

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Answer:

= 1.25 units per unit

Step-by-step explanation:

Plz name me brainliest I would greatly appreciate it Thank You

I don’t know

Step-by-step explanation:maybe ask your mom