The exponential equation that correctly models the ball's peak height, h, in meters, after b bounces is given by:

<h3>What is an exponential function?</h3>
A decaying exponential function is modeled by:

In which:
- A(0) is the initial value.
- r is the decay rate, as a decimal.
In this problem:
- Rocio drops a ball from a height of 4 meters, hence A(0) = 4.
- Each time the ball bounces, it reaches a peak height which is 79% of the previous peak height, hence 1 - r = 0.79.
Thus, the equation is given by:

More can be learned about exponential equations at brainly.com/question/25537936
Answer:
18
Step-by-step explanation:
3(2)+2(4)+4=
6+8+4=18
First the number of ways of selecting 3 students out of 8 is 8*7*6/(3*2*1)=56.
There are 6 ways of arranging the officers, so the total number of ways is 6*56=336
Answer:
Step-by-step explanation:
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