Answer:
9
Step-by-step explanation:
if you substitute a for 3 and b for 2 you should get 9
Answer:
It's B. Some of the ball's energy is transformed to thermal energy.
Step-by-step explanation:
Just Trust Me!
Answer:
7. Height = 21 in
8. Height = 13 cm or 130 mm
Step-by-step explanation:
7.
½ × 5 × height = 52.5
height = 21 in
8.
23 mm ÷ 10 = 2.3 cm
½ × 2.3 × height = 14.95
height = 13
38.68 is rounded to the nearest hundredth