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3 years ago

6

PLEASE HELP ME!!!

1 answer:

PSYCHO15rus [73]3 years ago

7 0

1) 3x=(4x+50-30)/2
x=10

Explanation: (1/2)(big arc - small arc), plug in the numbers and solve

2) 15•x=33•10
x=22

Explanation: a•b=c•d, plug in the numbers and solve

3) (x+8)•8=(24+4)•4
x=6

Explanation: W•E=W•E, whole•external part= whole•external, plug in the numbers and solve

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Answer:

x = -13

Step-by-step explanation:

Given that:

9-2x=35

Adding 2x-35 on both sides we get:

9 - 35 = 2x

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Dividing both sides by 2

-13 = x

i hope it will help you!

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3 years ago

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JulijaS [17]

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3 years ago

Determine whether each scale factor produces an expansion or a contraction under a dilation of the original image

blondinia [14]

Answer:

see the explanation

Step-by-step explanation:

we know that

If the absolute value of the scale factor is less than 1, then the dilation produces a contraction of the original image

If the absolute value of the scale factor is greater than 1, then the dilation produces an expansion of the original image

so

<u><em>Verify each value</em></u>

1) -4

$\left|-4\right|=4$

$4> 1$

therefore

The dilation produces an expansion of the original image

2) 0.25

$\left|0.25\right|=0.25$

$0.25 < 1$

therefore

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$2.3 > 1$

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3 years ago