3 years ago

Which of the following equations has both -7 and 7 as possible values of f?

Mathematics

1 answer:

aev [14]3 years ago

8 0

A
7 x 7 = 49
-7 x -7 = 49

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A university needed to transport 90 fans to its football game from the stadium parking lot. The university rented a bunch of van

andrew-mc [135]

Answer:

90 divided by 10

Step-by-step explanation:

This is the answer because when you divide the 90 and the amount of students in each van(10) you would get the equation needed to see how many students are in each van.

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4 years ago

The path followed by a roller coaster as it climbs up and descends down from a peak can be modeled by a quadratic function, wher

Romashka [77]

Answer:

$y = -0.1x^2 + 250 ft$

Step-by-step explanation:

Because this quadratic equation would have the curve-down form of:

$y = -ax^2 + b$

where a and b are positive coefficient.

If we let the peak (250 ft) of the curve be at x = 0. Then

$y = -a0^2 + b = 250$

$b = 250$

Also at the begins and ends, thats where y = 0, the 2 points are separated by 100 ft. So let the begin at -50 ft and the end at 50ft. We have

$-a(\pm 50)^2 + 250 = 0$

$-a2500 = -250$

$a = 250/2500 = 0.1$

Therefore, the model quadratic equation of our path would be

$y = -0.1x^2 + 250 ft$

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3 years ago

Theorems are understood as true and do not need to be proved.<br><br> True<br><br> False

patriot [66]

The answer is FALSE. Theorem, as applied in mathematics, is a statement that has been proved having a basis of laborious mathematical reasoning. The statement that is assumed to be true without proof is called axiom or postulate. Theorems are proved using axioms.

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3 years ago

Please help.........

Romashka-Z-Leto [24]

What you need help with

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Am I the only one whose parents yell their name and when you tell back yes mom they don’t answer?

arsen [322]

No your not the only one

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