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soldier1979 [14.2K]

2 years ago

14

Nestor the clown does the face painting at the city carnival. She paints seven faces every 21 minutes and spend the same amount

of time each face right in equation that reflects F, the number of faces she paints and M, the time she spends painting in minutes

1 answer:

Likurg_2 [28]2 years ago

4 0

Answer:

21/F=M

Step-by-step explanation:

3 minutes per face so divide time and faces to get the time.

F=7 M=3

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vladimir1956 [14]

Answer:

0.00045 $m^{3}$

Step-by-step explanation:

450 $cm^{3}$ ⇒ $m^{3}$

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2 years ago

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Solve 2x^3+7x^2-2x-1=o

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Answer:

$x=\sqrt{3}-2\\x=-\sqrt{3}-2\\x=\frac{1}{2}$

Step-by-step explanation:

This is a hard one

We have to use the rational root theorem

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We then plug them into the equation to see if any of them work

The equation isn't true when plugging 1, but is true when plugging in 1/2

factored form of 1/2 is (2x-1)

Then we divide the original equation by (2x-1) (you can use synthetic division or long division, it would be hard to type out the process for that) to get $x^2+4x+1$

So now the equation is $(2x-1)(x^2+4x+1)$

Solve the second half of this equation using the quadratic formula to get

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Answer:

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Step-by-step explanation:

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6=0.24*n

n=6/0.24

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Step-by-step explanation:

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