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3 years ago

15

Enrollment at high school is changing at a rate of -15 students per year. At that rate how long will it take for the change in t

he schools enrollment to be -75 students?

1 answer:

Mnenie [13.5K]3 years ago

6 0

5 years. Because -15 - it's <span>changing at a rate per year.
75/15=5 years we need</span>

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How do I factor x^4-5x^2+6?

Vilka [71]

Answer:

$=(x^2-3)(x^2-2)$

Step-by-step explanation:

So we have the expression:

$x^4-5x^2+6$

And we wish to factor it.

First, let's make a substitution. Let's let u be equal to x². Therefore, our expression is now:

$=u^2-5u+6$

This is a technique called quadratic u-substitution. Now, we can factor in this form.

We can use the numbers -3 and -2. So:

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For the first two terms, factor out a u.

For the last two terms, factor out a -3. So:

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$=(u-3)(u-2)$

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3 years ago

Find the circumference of the circle. Round your answer to two decimal places if necessary <br> 4cm

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Answer:

I think its 12.56

Step-by-step explanation:

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2 years ago

Yuto and Riko went for a bike ride on the same path. When Riko left their house, Yuto was 5.25 miles along the path. If Yuto’s a

Nimfa-mama [501]

Answer:

Step-by-step explanation:

When Riko left his house, Yuto was 5.25 miles along the path.

Average speed of Riko = 0.35 miles per minute

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First we will calculate the time in which Riko will catch Yuto on the track.

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= 0.10 miles per minute

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t = 52.5 minutes

Now we know that Rico will catch Yuto in 52.5 minutes. Before this time he will be behind Yuto.

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3 years ago

Read 2 more answers

Can an absolute value equal a negative?

Montano1993 [528]

The distance of it away from zero cannot be a negative distance, distance is always positive therefor the absolute value will always be positive.

Short answer: no, absolute value is always positive

I hope this helps :)

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3 years ago

Given the function f(x) = 6x^2 −13, what is f(-3)?

Naya [18.7K]

<h3>Answer: 41</h3>

Work Shown:

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f(-3) = 6(-3)^2 - 13 ... replace every x with -3; use PEMDAS to simplify

f(-3) = 6(9) - 13

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3 years ago