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Leno4ka [110]
2 years ago
15

EASY 20 POINTS! PLEASE HELP

Mathematics
1 answer:
k0ka [10]2 years ago
5 0

Answer:

5/9 for parallel, -9/5 perpendicular

Step-by-step explanation:

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FIND THE SLOPE <br> please explain me how to do it
natka813 [3]

Answer:

slope = - 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 4, 7) and (x₂, y₂ ) = (0, 3) ← 2 ordered pairs from the table

m = \frac{3-7}{0+4} = \frac{-4}{4} = - 1

5 0
3 years ago
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The sum of twice a number and 4 is equal to the sum of the number and 8
zalisa [80]

Answer:

4

Step-by-step explanation:

Variable: X = Unknown Number

2x + 4 = x + 8

2x - x = 8 - 4

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Check:

2(4) + 4 = 4 + 8

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3 0
3 years ago
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Nataly_w [17]
What i don't understand sorry I couldn't help because im only in 5th grade im sorry
4 0
3 years ago
6. Evaluate /(x) = -4x - 5 for x = -1.
Stels [109]

Answer:

-1

Step-by-step explanation:

-4(-1)-5=4-5=-1

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3 years ago
A wall is 20 inches thick. 6 inches is​ concrete, 9 inches is​ brick, and 5 inches is limestone. What fraction of the wall is​ c
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30%

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