Which of the following expressions can be used to find the perimeter of the shape? All sides are the same length. A. 15 x 15. B. 6 x 15. C. 15 + 6. D. 15 + 15 + 15 + 15 + 15 + 15.

B and D

Step-by-step explanation:

This must be a six sided figure

A. 15 x 15.  This would be area

B. 6 x 15.   This is the sum of six sides of 15

C. 15 + 6.  This is the sum of 2 sides of different length

D. 15 + 15 + 15 + 15 + 15 + 15.  This is the sum of six sides of length 15

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above