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Colt1911 [192]
2 years ago
11

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the

Mathematics
1 answer:
bonufazy [111]2 years ago
3 0

Answer:

7.89 seconds

Step-by-step explanation:

using the quadratic formula (-b+-√(b^2-4ac))/2a

a=-16 b=119 c=57

x=-0.451

and

x=7.889

time cant be negative so use the positive x

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Fittoniya [83]

Answer:

For less than 7 uniforms.

Step-by-step explanation:

The first company she called charges $70 per uniform.

So, the cost of x uniforms will be $70x.

The second company she called charges $280 plus $30 per uniform.

So, the cost of x uniform will be $(280 + 30x).

Now, if the total cost of purchasing x number of uniforms from the first company is less than that from the second company then, we can write the inequality equation as  

70x < 280 + 30x

⇒ 70x - 30x < 280

⇒ 40x < 280

⇒ x < 7

Therefore, for less than 7 uniforms the cost from the first company will be less than the cost from the second company. (Answer)

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3 years ago
How many solutions are there to the equation below?
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Anastaziya [24]
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2 years ago
Does this equation represent a function?<br> Answer Yes
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Answer:

yes

Step-by-step explanation:

ur welcome

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A. 4/7 B. 2/7 C. 3/7 D. 5/7
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