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vova2212 [387]
3 years ago
15

The height h, in feet of a model rocket t seconds after launch is given

Mathematics
1 answer:
Illusion [34]3 years ago
7 0

Answer:

h_max = 324.09 ft

Step-by-step explanation:

The correct equation is;

h = 245t - 16t²

We are told that as the rocket descends, it deploys

a recovery parachute when it reaches 325 feet above the ground.

Thus;

245t - 16t² = 325

Thus;

16t² - 245t + 325 = 0

Using quadratic formula, we have the roots as;

t = 1.47s or 13.85s

We will pick the higher value.

Thus;

Maximum height will occur at t = 13.85 s

Thus, plugging in 13.85 for t into h = 245t - 16t², we have;

h_max = 245(13.85) - 16(13.85)²

h_max = 324.09 ft

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the length of the room is 20ft.

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Answer:

The answer of 2 x 3 would be 6

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2 years ago
4,250,000 written in word form
Wewaii [24]
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5 0
3 years ago
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You have 32 Tbsp of peppercorns. You need 0.25 teaspoons to make one serving of Cajun seasoning. How many servings can you make?
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Complete the steps to solve the inequality:<br><br> 0.2(x + 20) – 3 &gt; –7 – 6.2x
KIM [24]

Answer:

x > -1.25

Step-by-step explanation:

First, let's start with the left side of the equation.

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So you have 0.2x+4-3

Simplify that, you will have 0.2x+1

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2) 0.2x+6.2x>-7-1               Moved like terms to one side.                    

6.4x>-8                                 I combined the terms here!

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Let me know if you need anything else :)

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