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tensa zangetsu [6.8K]
2 years ago
11

cannonball is shot into the air. its height can be described by the equation h = -5t2 + 40t, where h is the height in feet and t

is the time is seconds. when will the cannonball hit the ground?
Mathematics
1 answer:
Norma-Jean [14]2 years ago
7 0

Answer:

Step-by-step explanation:

hello :

the cannonball hit the ground when h=0

-5t² + 40t=0 means : -5t(t- 8)=0

t=8

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To find Angle A we use cosine

cos ∅ = adjacent / hypotenuse

From the question

The adjacent is 17

The hypotenuse is 38

So we have

cos A = 17/38

A = cos-¹ 17/38

A = 63.4

<h3>A = 63° to the nearest degree</h3>

To find Angle C we use sine

sin ∅ = opposite / hypotenuse

From the question

The opposite is 17

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So we have

sin C = 17/38

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C = 26.57

<h3>C = 27° to the nearest degree</h3>

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Answer:

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Step-by-step explanation:

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the volume of a cone is 62.28 cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the
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If 3t=5t-8 evaluate -4t+5
Sergio [31]

3t = 5t - 8

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