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avanturin [10]
3 years ago
7

(9r^2+4r-7)+(3r^2-3r)

Mathematics
1 answer:
bixtya [17]3 years ago
8 0

Answer:

12r2+r−7

Step-by-step explanation:

hope it helped

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Read 2 more answers
Y = 15x <br> y = 25 + 12.5x
swat32

Substitute y = 15x to the equation y = 25 + 12.5x:

15x = 25 + 12.5x     <em>subtract 12.5x from both sides</em>

2.5x = 25    <em>divide both sides by 2.5</em>

x = 10

Substitute the value of x to the equation y = 15x:

y = (15)(10)

y = 150

<h3>Answer: x = 10 and y = 150</h3>
7 0
4 years ago
4) Given the line with equation 2x + 5y= 10 :
Svetlanka [38]
A. <span>2x + 5y= 10
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b. The slope is 2

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y= -2/5x+2
y= -2/5(0)+2
y=0+2
y=2

(0,2) is the y-interecpt

d. Please veiw below

4 0
3 years ago
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