Anna is 26 ft. high on a rock-climbing wall. She descends to the 15-foot mark, rests, and then climbs down until she reaches her
1 answer:
Answer:
She has descended a total of 18 feet from the top to her friend.
Step-by-step explanation:
Anna is 26 ft. high on a rock-climbing wall.
She descends to the 15-foot mark,means she come to a height of feet and rests.
Then climbs down until she reaches her friend, who is 8 feet from the ground.
So, she climbs down feet more.
Hence, in total Anna has descended feet
The answer : She has descended a total of 18 feet from the top to her friend.
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Answer:
9 represents the initial height from which the ball was dropped
Step-by-step explanation:
Bouncing of a ball can be expressed by a Geometric Progression. The function for the given scenario is:
The general formula for the geometric progression modelling this scenario is:
Here,
represents the initial height i.e. the height from which the object was dropped.
r represents the percentage the object covers with respect to the previous bounce.
Comparing the given scenario with general equation, we can write:
= 9
r = 0.7 = 70%
i.e. the ball was dropped from the height of 9 feet initially and it bounces back to 70% of its previous height every time.