<span>h= (-16t^2 + 28t + 7) </span>
find the derivative to get time<span>
<span>
h' = (-32t + 28)
When the ball reaches its maximum height, its
vertical velocity (h’) will be 0 </span></span>
<span>
<span>
0 = -32t + 28 </span></span>
-32t=-28
<span><span>-28/-32 = </span>0.875
seconds </span><span>
<span>
The ball reaches its maximum height in 0.875
seconds after being thrown; plug and chug and:
h= (-16(0.875)^2 + 28(0.875) + 7) = 19.25 feet</span></span>
Max height = 19.25 feet, time = 0.88 seconds
Answer:
2 
Step-by-step explanation:
3/4 + 5/6 (lowest common denominator = 12)
= 9/12 + 10/12
= 19/12
19/12 ÷ 2/3 (reciprocate 2/3 to replace division sign by multiplication sign)
= 19/12 x 3/2
= 57/24
= 19/8
= 2
Hope this helps :)
5/5+2/5=7/5
7÷5=1.4
Please mark me as the brilintest
Answer:
a) never true
Step-by-step explanation:
a radius is always half of a diameter
Answer:
false
Step-by-step explanation:
