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Zolol [24]
3 years ago
13

Which expression represents the sum of 8 and twice a number?

Mathematics
1 answer:
vekshin13 years ago
7 0

Answer:

  • B. 8 + 2n

Step-by-step explanation:

Twice a number is 2n

Sum of 8 and twice a number is

  • 8 + 2n

Correct choice is B.

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DedPeter [7]

To make it easier just assume there is no decimal point then just work out the 32÷4 where we know that 4 goes into 32 8 times so you get 8 remember the decimal point and since it was one decimal place you will push the decimal over to the left of 8 and that is how you get 0.8

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3 years ago
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Which function is graphed?
Alexandra [31]

Hey there! :)

Answer:

C. {x² + 4, x < 2

    {-x + 4   x ≥ 2

Step-by-step explanation:

This is a piecewise function, where the two equations are different. They are:

y = x²+ 4

y = -x + 4

The function x² + 4 is graphed where x < 2. (< is used because the circle is open)

The function -x + 4 is graphed where x ≥ 2. (≥ is used since the endpoint is closed)

Therefore, the correct answer is:

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5 0
3 years ago
What is the simplify of this expression -2(2b-3)
patriot [66]

-2(2b-3)

Multiply the bracket by -2

Whenever multiplying a -negative number with a -negative number= + positive number.

(-2)(2b)(-2)(-3)

-4b+6

Answer: -4b+6

6 0
3 years ago
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Kobotan [32]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
Points
liq [111]

Answer:

[x-h]^2 + [y-k]^2 =r^2

Step-by-step explanation:

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The equation of the circle is given as:

[x-h]^2 + [y-k]^2 =r^2

3 0
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