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3 years ago

Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.

Mathematics

2 answers:

Olin [163]3 years ago

6 0

I hope this helps you

Luba_88 [7]3 years ago

4 0

The first equation is already solved, the slope is -1/4

The second equation you need to rearranged the numbers..

-2x+8y=4
8y=2x+4 now divide by 8
Y=4x+2

Which makes the answer perpendicular because they are both different signs and are swapped.

Hope this helps :)

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What is <br> m<5 =3x - 12

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2 years ago

In a store the number of dogs is 12 times greater than 3 times of cats. If there are 21 dogs in the store, how many cats are in

user100 [1]

Answer:

If you really meant that the number of dogs is 12 greater than 3 times the number of cats then:

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2 years ago

3m+3n=36<br> 8m+5n=31 <br> Using the process of elimination

amm1812

Answer:

m=-29/3 and n=65/3

Step-by-step explanation:

The given system has equations:

3m+3n=36

8m+5n=31

Multiply the top equation by 5 and bottom equation by 3 to get:

15m+15n=180

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Subtract the top equation from the bottom equation to get:

9m=-87

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We substitute this value into the first equation to get:

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3 years ago

F(x)=x^3 −9x <br> What is the average rate of change of over the interval [1,6]?

Inga [223]

Answer:

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

$\frac{f(b)-f(a)}{b-a}$

Here [ a, b ] = [ 1, 6 ], thus

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f(a) = f(1) = 1³ - 9(1) = 1 - 9 = - 8

average rate of change = $\frac{162-(-8)}{6-1}$ = $\frac{170}{5}$ = 34

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3 years ago