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just olya [345]
3 years ago
7

I need help on these questions please

Mathematics
1 answer:
Hatshy [7]3 years ago
3 0
1. 
7x^{2} + 15x - 8

2.
5f^{2} + 11f -2
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What is 12 percent of 130?
maksim [4K]
12% of 130 is 15.6 hope it helps!

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3 years ago
Read 2 more answers
10. 10x + 5y = 15<br> y=2x-3
Ivan

Answer:

(i think) 1.5

Step-by-step explanation:

If you replace y with the equation y=2x-3, you get 5(2x - 3)

if you distribute this, it equals 10x - 15

combining like terms 10x + 10x - 15=15 will turn into 20x - 15 = 15

if you add 15 to both sides, -15 will cancel and 15 will turn into 30

20x = 30

divide both sides by 20 which will lead to x=1.5

6 0
3 years ago
Help! (tell me if you can’t see it)
Anna35 [415]

Answer:

B. y=7x+3

Step-by-step explanation:

You find the changes of y over the changes of x. y sub 2 - y sub 1 divided by x sub 2 over x sub 1. So, 17 - 10 over 2 - 1 = 7. 3 is the y-intercept. y=7x+3

4 0
3 years ago
Find the area of the irregular figure. I don’t know this I need help.
Shkiper50 [21]

Answer:

11 in.²

Step-by-step explanation:

you can divide the shape into 2 rectangles and then you solve for the 2 rectangles and then you add them up.

4 0
3 years ago
Can anybody help me with this?
r-ruslan [8.4K]
Study..................................................
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