Using an exponential function, it is found that the value of the function when x = 4 is of f(4) = 15.95.
<h3>What is an exponential function?</h3>
It is modeled by:

In which:
- b is the rate of change, as a decimal.
In this problem, we have that f(-1)=5, hence:


a = 5b
We also have that f(7)=32, hence:

Since a = 5b:

![b = \sqrt[8]{\frac{32}{5}}](https://tex.z-dn.net/?f=b%20%3D%20%5Csqrt%5B8%5D%7B%5Cfrac%7B32%7D%7B5%7D%7D)
b = 1.2612.
a = 5b = 5 x 1.2612 = 6.306.
Hence the function is given by:

Then, when x = 4, we have that:

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Answer:
10 hours
Step-by-step explanation:
Hello! :)
In 2 hours, he is going up 4 feet and down 1 which means he advances 3 feet every two hours.
15 ft/3 ft=5 ft
2 hours x 5 ft=10 more hours
Hope this could help!
Answer:
1/8
Step-by-step explanation:
P(-3, 0) and Y(5,-1)
If PLAY is reflected over x-axis, then P-->P'(-3,0) and Y-->Y'(5,1)
Slope of P'Y' = (1 - 0)/(5+3) = 1/8
Answer:
Hope this helps!
(correct me if I'm wrong, but please polity)
Step-by-step explanation:
I'm sorry if the handwriting is bad ( Im not the one who answered it I'm sorry)
If one basket is selected at random, the probability that both are mangoes is; 1/10
<h3>How to find probabilities?</h3>
Contents of first basket;
3 mangoes
4 oranges
3 apples
Contents of second basket;
5 mangoes.
5 oranges.
5 apples.
Probability of mango in first basket is = 3/10
Probability of mango in second basket is = 5/15
Thus;
Probability that both are mangoes = (3/10) * (5/15)
Probability that both are mangoes = 1/10
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