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2 years ago

Which situation CANNOT be represented by this equation? -1\4x + 14 = 8

Mathematics

2 answers:

ahrayia [7]2 years ago

6 0

Probably C)
it starts with 8-foot diameter, and it is supposed to get smaller

This is just a theory

Dafna11 [192]2 years ago

4 0

Answer:

Situation (C) cannot be represent by the given equation.

Step-by-step explanation:

In (A), the balloon shrinks at the rate x. So, each 1/4 of an hour, its diameter reduces by the amount 1/4x.

So, it correctly represents the given equation.

In (B), the diameter reduces to 1/4 every minute.

So, in x minutes the amount reduced = 1/4x.

So, it also correctly represents the given equation.

In (C), the diameter reduces to 1/4 foot per minute but its original measurement is 8 foot and we are asked to find the expression when it is 14 feet.

So, the correct equation for this situation is 1/4x + 8 = 14.

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Answer:

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0 = 139-15t-16t^2

We can use the quadratic formula to find t

t = -b ± sqrt(b^2-4ac)

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where a = -16 b = -15 and c = 139

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2 years ago

Please solve this literal equation for the variable "f"

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Answer:

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