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2 years ago

Solve using the elimination method. 5r-2s=21 & 2r+5s=20

1 answer:

5 0

I hope this is correct. I solved it using the addition elimination method. The answer is s= 2, and r= 5. I hope that was helpful.

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Need help doing this questions, all help is appreciated thanks.

vichka [17]

Answer:

The answer to your question is the third option

Step-by-step explanation:

To know if two lines are parallel we must get their slopes if the slopes are equal, the lines are parallel.

Data

A (2,2)

B (3,6)

C(0,5)

D(1,9)

Formula

slope = $\frac{y2 - y1}{x2 - x1}$

Process

1.- Calculate the slope of line 1

slope 1 = $\frac{6 - 2}{3 - 2}$

slope 1 = $\frac{4}{1}$

slope 1 = 4

2.- Calculate slope 2

slope 2 = $\frac{9 - 5}{1 - 0}$

slope 2 = $\frac{4}{1}$

slope 2 = 4

3.- Compare the slope

slope 1 = 4 and slope 2 = 4, both slope are equals, then the lines are parallel.

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2 years ago

WILL GIVE BRAINLIEST ASAP, EASY 8TH GRADE MATH, MORE THAN 5 POINTS! The formula for the circumference of a circle is: c = 2πr So

Brilliant_brown [7]

Answer:

r = $\frac{C}{2\pi }$

Step-by-step explanation:

We simply are rearranging C= 2πr in terms of <em>r</em>. We just divide 2π on both sides.

3 0

3 years ago

Read 2 more answers

√25 + √144<br>who can solve please

Masja [62]

Answer:

Step-by-step explanation:

√25 = 5

√144 = 12

5 + 12 = 17

Please mark me Brainliest :)

5 0

3 years ago

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A meat packaging plant uses a machine that packages chicken livers in six pound portions. A sample of 91 packages of chicken liv

Aneli [31]

Answer:

it simple as look

Step-by-step explanation:

He y I a m r a v I t ha n k S

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2 years ago

NO BULL SH*T REAAAAAAAL A F

Mariulka [41]

The answer is A! 4%

4 0

2 years ago