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djverab [1.8K]
3 years ago
9

Given the equation y = 2x - 8, what is the slope and the y-intercept?

Mathematics
2 answers:
slamgirl [31]3 years ago
6 0
The answer is m = 2 and b = -8
because y=mx + b
in the equation above m = 2 because mx=2x
b = -8 because mx+b
plus or minus 
aniked [119]3 years ago
4 0
The answer to this is the second choice
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Riley is currently 4 times as old as her brother. If Riley was 11 years old 5 years ago, how old is Riley's brother now?
Sonbull [250]
Riley's age = r
Riley's brother's age = r/4

If Riley was 11 five years ago, Riley is currently 11 + 5 years old, or 16 years old.

Now we just need to use r/4 to find Riley's brother's age:

16 /4 = 4

Riley's brother is 4 years old.

Hope this helps!
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3 years ago
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3 years ago
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Factor 64v^3 + 192v^2 -56v - 168​
Kaylis [27]

Hello from MrBillDoesMath!

Answer:

8(v+3) ( -1/2 (sqrt(14) - 4 v) (4 v + sqrt(14)) )


Discussion:

Given

64v^3 + 192v^2 - 56 v - 168      

Factor 64v^2 from the first two terms. Factor 56 from the last two terms:

64v^2(v+3) - 56(v  + 3)     => factor (v+3) from both terms

(v+3) (64v^2 - 56)             => factor 8 from both terms in the right ()

8(v+3)(8v^2-7)                   => factor 8y^2-7

8(v+3) ( -1/2 (sqrt(14) - 4 v) (4 v + sqrt(14)) )



Thank you,

MrB

4 0
3 years ago
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ale4655 [162]

Answer:

4/6

Step-by-step explanation:

1/2 = 3/6. 3/6 + 1/6 = 4/6

3 0
3 years ago
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