Evaluate the following expression. 7 × 22 + (8 - 2) ÷ 3

Answer:

Step-by-step explanation:

The equations given are:

For the equations to generate the same independent value, then

This implies that:

Group similar terms to get:

Simplify to get:

Answer:

The answer is A.

Answer:

r=7

Step-by-step explanation:

-84+15r=3r

Subtract 15r from each side

-84+15r-15r=3r-15r

-84 = -12r

Divide each side by -12

-84/-12 = -12r/-12

7 = r

Answer:

r = 7

Step-by-step explanation:

So the reason that the answer is 7 is because in this equation you have to get all the r's on one side and the other numbers on the other side of the equal sign.

-84 + 15r = 3r

-84 = -12r

you then divide both sides of the equal sign by -12 in order to get rid of the -12 next to the r variable and when you divide the negative 84 by a negative 12 you will get a positive 7 giving you the answer r = 7

Answer:

sqrt(2)

Step-by-step explanation:

1. Find the mean.

Mean=1+2+3+4+5=15/5=3

2. Subtract each number by the mean and square the value.

1-3=-2^2=4

2-3=-1^2=1

3-3=0^2=0

4-3=1^2=1

5-3=2^2=4

3. Add the values in step 2 then divide by amount of numbers.

4+1+0+1+4=10/5=2

4.Square the value in step 3 and that is the answer.

sqrt(2)

Answer:

14,800in^2

Step-by-step explanation:

ok so to find the area of a trapezoid, we use the equation A=((a+b)/2)h. So Area is equal to base a (the one on the top) plus base b (the one on the bottom) divided by two (so a+b/2) and then multiply that number by h (the height. So we do it like this

(145+225)/2 x 80

But remember, we follow PEMDAS, so we multiply first

(a+b)80

370(80)= 29600

now we can divide

29600/2= 14,800sq in (or in^2)

14800

(145+225)x80 and divided by 2