Answer:
A. the number of hours it takes for him to finish the race.
Step-by-step explanation:
If this answer is correct, please make me Brainliest!
Answer:

Step-by-step explanation:
we are given r and the formula
we want to find the surface area of the shpare with the given r
to do so
we need our algebra skills
substitute the value of r:

recall law of exponent

to simplify:

simplify multiplication:

distribute:

hence our answer is F
Answer:
b) Interpreted, organized, or structured data
Step-by-step explanation: from my notes
Answer:
k=20.
Explanation: First we find where f(x) has its local extrema: f'(x)=3x2−10x+3. The critical points are roots of the equation: 3x2−10x+3=0.