I will mark brainiest please help me im stuck on this questionnnn

Mathematics

1 answer:

Bess [88]3 years ago

5 0

I guess It would be B

You might be interested in

The height of a batted ball is modeled by the function h=-0.01x^2+1.22x+3, where x is the horizontal distance in feet from the p

givi [52]

Part A:

Given that t<span>he height of a batted ball is modeled by the function $h=-0.01x^2+1.22x+3$ , where x is the horizontal distance in feet from the point of impact with the bat, and h is the height of the ball in feet.

At maximum height,

$\frac{dh}{dx} =0$

$\frac{dh}{dt} =0 \\ \\ \Rightarrow-0.02x+1.22=0 \\ \\ \Rightarrow0.02x=1.22 \\ \\ \Rightarrow x= \frac{1.22}{0.02} =61$

Thus, the maximum height occurs when x = 61 feet and the maximum height is given by

$h=-0.01(61)^2+1.22(61)+3 \\ \\ =-0.01(3,721)+74.42+3=-37.21+77.42 \\ \\ =40.21$

Therefore, the maximum height is 40.21 feet.
</span>

4 0

4 years ago

Help me ASAP please

Umnica [9.8K]

Answer:

Step-by-step explanation:

$\dfrac{1}{3}y+1\leq4\qquad\text{subtract 1 from both sides}\\\\\dfrac{1}{3}y\leq3\qquad\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup^1\cdot\dfrac{1}{3\!\!\!\!\diagup_1}y\leq(3)(3)\\\\y\leq9$