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3 years ago

Finding Inverses Find an equation for the inve 3. y = 3x + 2

1 answer:

7 0

First we swap our x and y variable, so we get

x = 3y + 2

Then, we solve for y
We can first subtract 2 on both sides

x - 2 = 3y

Then we can divide by 3 on both sides to get

x/3 - 2/3 = y

So our final equation is

y = x/3 - 2/3

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

irinina [24]

Answer:

10 sides,that is, a decagon or 10gon

Step-by-step explanation:

If the exterior angle is 36° then numbers of sides=

$36 = \frac{360}{n}$

Therefore

n=360°÷36°=10

4 0

2 years ago

Read 2 more answers

The following data points represent the number of children in each household on Maple Street. \qquad 0, 1, 2, 1, 20,1,2,1,20, co

zaharov [31]

Answer:

The mean number of the children is 1.2

Step-by-step explanation:

Given

Children: 0, 1, 2, 1, 2

Required

Determine the Mean number

The mean of a set is calculated as follows;

$Mean = \frac{\sum x}{n}$

Where x is the given set and n is the number of sets

In this case, n = 5 children

Hence;

$Mean = \frac{0 + 1 + 2 + 1 + 2}{5}$

$Mean = \frac{6}{5}$

$Mean = 1.2$

<em>Hence, the mean number of the children is 1.2</em>

3 0

2 years ago

Pls help me it’s emergency plzz fast

earnstyle [38]

Answer:

67.3%

Step-by-step explanation:

Calculate profit = selling price - cost price

cost price = 50 × $28 = $1400

38 × $49 = $1862

12 × $40 = $480

selling price = $1862 + $480 = $2342

Profit = $2342 - $1400 = $942

% profit = $\frac{profit}{cost}$ × 100%

= $\frac{942}{1400}$ × 100% ≈ 67.3% ( to 1 dec. place )

7 0

3 years ago

Find the value of two numbers is there some is 12 and there difference is 4

Mademuasel [1]

You mean their sum is 12?

A) x + y = 12
B) x -y = 4 then we add both equations:
2x = 16
x = 8
y = 4

3 0

3 years ago

Does anyone know the answer?

Evgesh-ka [11]

The perimeter of R is the same as the perimeter of L

3 0

3 years ago