Answer:
99
Step-by-step explanation:
If you were going to multiply those two numbers, the answer would be D, 192.
Answer:
x=19
Step-by-step explanation:
The perimeter of the right triangle is
P=9+12+15 =36
The perimeter of the left triangle is
P =x-7+ x-7+ x-7 = 3x-21
Set them equal
36 = 3x-21
Add 21 to each side
36+21 = 3x-21+21
57 = 3x
Divide each side by 3
57/3 = 3x/3
19 =x
Answer: look at the image :))
Step-by-step explanation:
21 and -4, because -4x21 = -84, and 21+-4 (– 4) = 17
