Answer:
D. 21
Step-by-step explanation:
replace 21 for r, 4(21)=84
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Answer:
The maximum height is 1087.06 ft.
Step-by-step explanation:
We need to take the derivative of the equation and set it to 0.
We now can plug x = 7.9375 into the original equation.
Answer:
84
Step-by-step explanation:
f(x) = 3x^2 + 2x – 1
Let x=5
f(5) = 3(5)^2+2(5) -1
= 3*25 +10-1
= 75+10 -1
= 85 -1
If 2 inches equal 40 miles, 4 inches would equal 80. You don’t have to do anything else because you can eliminate all the other answers. The only one it could be is B. 82.5 miles.
