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julsineya [31]
2 years ago
6

Simplify the following expression, then evaluate when x=1: -8x + 5 - 2x - 4 + 5x

Mathematics
1 answer:
Zinaida [17]2 years ago
3 0
(-2x-2) is the correct answer
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Given the function below, find /(-7)<br> (X) = -2x-1
Lostsunrise [7]

For this case we have a function of the formy = f (x)where:

f (x) = - 2x-1

We must find the value of the function whenx = -7. So:

f (-7) = - 2 (-7) -1

By definition we have to:

- * - = +\\f (-7) = 14-1 = 13

Thus, the value of the function is y = 13

Answer:

y = f (-7) = 13

7 0
3 years ago
Express ratio 3.5:14 as 1:n
Luba_88 [7]

Answer:

1 : 4

Step-by-step explanation:

3.5 : 14 ( divide both parts by 3.5 )

= 1 : 4

3 0
1 year ago
Factorise completely 12 x³y - 18 xy²​
jarptica [38.1K]

Answer:

6xy(2x²-3y)

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factorized completely

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2 years ago
An irregular polygon is shown below:
lord [1]
24 units or you can put 7x4 units
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1 year ago
Find the slope of the line passing through (-7,-8) and (5,-8)
zhenek [66]

Answer:

slope = 0

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 7, - 8) and (x₂, y₂ ) = (5, - 8)

m = \frac{-8+8}{5+7} = \frac{0}{12} = 0

8 0
3 years ago
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