Answer:
1)The rocket hit the ground at
2)The maximum height of the rocket = 12.468 feet
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given equation
y = -2 x² + 5 x + 7 ...(i)
Differentiating equation (i) with respective to 'x' , we get
Equating zero
⇒ -4 x +5 =0
⇒ -4 x = -5
⇒
<em> The rocket hit the ground at </em><em></em>
<u><em>Step(ii):</em></u>-
...(ii)
Again differentiating equation (ii) with respective to 'x' , we get
The maximum height at x =
y = -2 x² + 5 x + 7
<em>The maximum height of the rocket = 12.468 feet</em>
Just fill in the problem... 3*-2-1-3*-2
She would have to invest $15,000 every year. Hope this helps!
Answer:
y=-3/4x-3
Step-by-step explanation:
Well. The formula for the area of a trapezoid is b1 + b2 over 2 times h.
a = b1 + b2 (h)
--------------------
2
3.9 = 4+2.5 (h)
--------------------
<span> 2</span>
3.9 = 6.5(h)
----
2
height = 1.2 cm.