Answer:
21
Step-by-step explanation:
Multiply 7 by 3 to get the number that if you divide it by 3 will give 7 which in this case is 1 according to the ratio provided.
Answer:
The velocity of the ball relative the racquet is 15 m/s.
Step-by-step explanation:
Given;
velocity of the tennis ball,
= 30 m/s
Velocity of the racquet swung in opposite direction,
= 15 m/s
The velocity of the ball relative the racquet (
) is calculated as;

Therefore, the velocity of the ball relative the racquet is 15 m/s.
im sorry: In order to solve the inequality -x > 8, which of the following steps must be done?
Since they both end in 2 you could add 2 and then eventually get 512. Or you could do 512-82 and get 430 so then you could do 430 plus 82 is 512.