3 years ago

Can someone please help me the questions are in the picture

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

3 0

B
C
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If 2x -3(x+4)=-5, Then x=

kherson [118]

The answer is -7

2x-3(x+4)=-5

Multiply by -3

2x-3x-12=-5

Collect like terms

-x-12=-5

Move constant to the right to change its sign

-x=-5+12

Add

-x=7

Change the signs

x=-7

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2 years ago

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Expand and simplify (n-2)(3n+7) + 2n(2n+3)

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2 + 10 = 24 3 + 6 = 27 7 + 2 = 63 5 + 3 = ????

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Answer:

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Step-by-step explanation:

2 + 10 = 24

2(2 + 10) = 2×12 = 24

3 + 6 = 27

3(3 + 6) = 3×9 = 27

7 + 2 = 63

7(7 + 2) = 7×9 = 63

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2 years ago

(15 points) what steps do i take to determine if y+3x^3=9 is linear

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Answer:

Answers are below

Step-by-step explanation:

Step 1: Graph the function

Step 2: Identify the type of function. This can be done by looking the exponents

Step 3: Since the exponent is 3, the function is not linear, but instead a cubic function.

I graphed this equation below.

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