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lesya692 [45]
3 years ago
10

Simplify the expression 5r + 8r​

Mathematics
2 answers:
S_A_V [24]3 years ago
7 0

Answer:

13r

Step-by-step explanation:

Jlenok [28]3 years ago
5 0

Answer: <em>13r</em>

Step-by-step explanation:

<em>You just add 5r with 8r</em>

<em>and you'll get</em>

<em>13r</em>

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Determine which number has a greater magnitude."<br><br> 7 and -8
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Answer:

7

Step-by-step explanation:

-8 is a negative number for example if you have -8 and you wanna get it to 0 you add 8 you don't have to do that with 7 it's a "positive" number

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3 years ago
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The perimeter of a square is 75 inches. What is the length of one side of the square?
bulgar [2K]

Answer:

18.75 inches

Step-by-step explanation:

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7 0
3 years ago
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Please need help on this
artcher [175]

Answer:

the center is (-4,7) and the radius is 3

Step-by-step explanation:

The center of a circle can be found using the equation (x-h)^2 + (y-k)^2 = r^2 and is (h,k) from it. Notice h and k are the opposite value as in the equation.  

First write the equation in this form.  

x^2 + 8x + ( ?)+ y^2 - 14y + (?) + 56 = 0  

Complete the square with each variable to find what numbers should go in place of the question marks.  

(8/2)^2 = 4^2 = 16  

(-14/2)^2 = -7^2 = 49  

Add 16 and 49 to both sides of the equation.  

x^2 + 8x + 16 + y^2 - 14y + 49 + 56 = 16 + 49\\(x+4)^2 + (y-7)^2 + 56 = 65\\(x+4)^2 + (y-7)^2 = 9  

So the center is (-4,7) and the radius is 3.

5 0
3 years ago
I need help?????????
Digiron [165]

Answer:

3

Step-by-step explanation:

5 0
2 years ago
Use the given set to determine the solution for each equation.
GaryK [48]
The answer for your equation is: y = 9
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