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insens350 [35]
3 years ago
11

I KNOW THIS IS IN MATHEMATICS BUT NOBODY ANSWERS IN CHEMISTRY SO I NEED HELP PLEASE!

Mathematics
1 answer:
mr Goodwill [35]3 years ago
7 0
I don't know if this may be correct but maybe a good title would be How can Gravity and Electricity Both Create an Attractive Force?
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Triangle PQR is similar to triangle XYZ. What is the perimeter of triangle XYZ?
xeze [42]
Triangle PQR is similar to triangle XYZ. What is the perimeter of triangle XYZ? Where is the picture
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3 years ago
The diameter of a circle is 20 centimeters what is the length of radius blank centimeters edulastic
riadik2000 [5.3K]

Answer:

The diameter is 2 times the radius.

D=2r

Substitute 20 as the diameter and solve for r.

20=2r

Divide both sides by 2.

10=r

So, the radius is 10 centimeters.

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5 0
2 years ago
The skateboard ramp has a width of 20 and a height of 16. What is its slope ( not to scale) ?​
slega [8]

Answer:

25.61 ?

Step-by-step explanation:

use Pythagoreans theorem

a^2+b^2=c^2

20^2+16^2=656

sqrt 656=25.61

4 0
2 years ago
Elapsed time 2 hr 37 min, end time: 1:15. start time?
3241004551 [841]

Answer:

10:38

Step-by-step explanation:

2 hours back from 1:15

11:15

37 minutes back from 11:15

10:38

The start time is 10:38.

6 0
3 years ago
Read 2 more answers
Factor –7x3 21x2 3x – 9 by grouping. what is the resulting expression?
MakcuM [25]

The resulting expression on factorization by grouping method is (3-7x²)(x-3).

<h3>What is Factorization?</h3>

Factorization is a method in which an Integer or an expression is written in terms of product of its fractions.

The expression given in the question is

–7x³ + 21x² + 3x – 9

This equation has to be factorized using grouping method.

group of two or more is formed and common term is taken out.

-7x² (x -3) +3(x-3)

( -7x²+3) (x-3)

(3-7x²)(x-3)

The resulting expression on factorization by grouping method is

(3-7x²)(x-3).

To know more about Factorization

brainly.com/question/24182713

#SPJ1

5 0
2 years ago
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