3 years ago

Can someone help me simplify this answer I keep getting it wrong?

Mathematics

1 answer:

ZanzabumX [31]3 years ago

8 0

The answer is -8

I found my answer by using desmos. It is the best app for graphing. I wrote the equation and then I looked for the point 18 on the y axis and then I looked where it was on the x axis

that is how I found my answer.

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You ask 125 randomly chosen students their favorite sport. There are 1300 students in the school. Based on the results of the su

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780 students

Set up a proportion.

75 / 125 = x/1300

125 10.4 = 1300

75 * 10.4 = 780

x=780

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3 years ago

What is the percent change of 36;63

STatiana [176]

First, find the difference.
63-36=27
Then, divide by the original number.
27/36=0.75
Then, put it in percentage form.
75%

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2 years ago

A silversmith mixed 100 g of a 40% silver alloy with 40 g of

notsponge [240]

Hey, don’t call for that link thing. It’s fake. Here’s how I solved this: x = [35(80%) + 70(25%)]/(35 + 70) = 43.3%

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3 years ago

Given that 310 = 59 049 , what is 3-10 expressed as an exact value?

Advocard [28]

$x^{-n}=\frac{1}{x^n} \\ \\
3^{10}=59049 \\
3^{-10}=\frac{1}{3^{10}}=\frac{1}{59049} \\ \\
\boxed{3^{-10}=\frac{1}{59049}}$

4 0

2 years ago

HELP PLEASE

DerKrebs [107]

3 terms
5x, 2x^2, -8

2nd degree
highest exponent is 2

2nd degree polynomial (3 terms)

6 0

2 years ago

Read 2 more answers