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Oksanka [162]
3 years ago
7

A system of equations is given below.

Mathematics
1 answer:
lyudmila [28]3 years ago
7 0

Answer:

B

Step-by-step explanation:

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Please help me answer this with an explanation
Nata [24]
You need to find the slope first. (-9,-4). (3,4)

-4-4= -8
-9-3 =-12. Slope is -8/-12 or 8/12 or 2/3


Perpendicular is the negative reciprocal. Or flip over the 2/3 and make it negative.

The answer is - 3/2
5 0
3 years ago
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How many hours is 8:30 to 12:45?
elena55 [62]
Hi there!

8:30 to 12:45 is four hours and 15 minutes. You could easily count this but if you're having trouble you could also use a clock. :P

Hope this helps!
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3 years ago
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HELP PLEASE PLEASE HELP<br> Solve for t.<br> -10t − -17t − 10t + -13 = 11
Marta_Voda [28]

-10t - (-17t) - 10t + (-13) = 11   (two negative signs makes a positive)

-10t + 17t - 10t - 13 = 11  Combine like terms

-3t - 13 = 11    Add 13 on both sides

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t = -8




8 0
3 years ago
A rectangle ahs a long side of a length 8.5 cm its perimeter is 24cm work out the length of the shorter side
Phantasy [73]

Answer:

Width (length of shorter side) = 3.5 cm.

Step-by-step explanation:

L = 8.5 cm

perimeter, P = 24 cm

2(L+W) = 24

substitute L = 8.5

2(8.5+W) = 24

8.5 + W = 24/2 = 12

W = 12 - 8.5 = 3.5 cm

5 0
3 years ago
Simplify (7x+42)/(x^2+13x+42)
Colt1911 [192]
\frac{7x+42}{x^2+13x+42}=  \frac{7(x+6)}{x^2+7x+6x+42}=   \frac{7(x+6)}{x(x+7)+6(x+7)}=  \frac{7(x+6)}{(x+6)(x+7)}=  \frac{7}{x+7}
7 0
3 years ago
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