Answer:
Step-by-step explanation:
The function is given :
f(x) = 4x + 15
For f(-3), the input for the function f(x) is -3.
Replace the x variable with -3.
f(-3) = 4(-3) + 15
Evaluate.
f(-3) = -12 + 15
f(-3) = 3
The output for f(-3) is 3.
Please help!!!! Thank you!!!! (25 points)
1 answer:
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Answer:
56.5 ft
Step-by-step explanation:
Here we know that:
- Keisha swims 18 feet from one side of her circular pool to the other swimming straight through the center --> this means that the diameter of the swimming pool is 18 feet, so
d = 18 ft
- Then, she swims one time around the entire edge of her swimming pool. --> this means that she swims along the perimeter of the swimming pool
The perimeter of a circle is given by
where d is the diameter. Therefore in this case, the length of Keisha's second swim is: