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3 years ago

What is supplementary angle

Mathematics

2 answers:

Y_Kistochka [10]3 years ago

7 0

Answer:

If two angles adds up to 180° then it is called supplementary angle...

nata0808 [166]3 years ago

4 0

Answer:

A supplementary angle is two angles that equal 180° when added together.

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The value of U.S exports to China increased from $1480 million in 2011 to $2768 million in 2012. What was the percentage increas

loris [4]

Answer: Percentage increase is 87.02%.

Explanation: Percentage increase is calculated by subtracting the value in 2012 from the value of exports in 2011 and then dividing it by the value in year 2011.

a. Subtract value in 2012 from value in 2011

b. Divide the answer in part a by value in 2011.

c. Multiply the answer in part b by 100.

We have the percentage increase.

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2 years ago

Read 2 more answers

Factor completely -2x^4+6x^3+8x^2

vlada-n [284]

Answer:

-2x²(x + 1)(x - 4)

Step-by-step explanation:

Hello!

Factor:

$-2x^4 + 6x^3 + 8x^2$
$-2x^2(x^2 - 3x - 4)$ Take out GCF

Think: What numbers add up to -3 and multiply to -4?

Answer: -4 and 1

Continue:

$-2x^2(x^2 - 3x - 4)$
$-2x^2(x^2 - 4x + x - 4)$
$-2x^2(x(x - 4) + 1(x - 4))$ Factor by Grouping
$-2x^2(x + 1)(x - 4)$

The complete factored form is -2x²(x + 1)(x - 4)

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2 years ago

Without dividing or listing multiples how can you tell if 61 is a multiple of 6.

Ostrovityanka [42]

For a number to be a multiple of 6, it must be divisible by 6
and a number divisble by 6 means that it is divisble by 2 and 3

since the ones digit is odd it is not divisble by 2 which means 61 is not a multiple of 6

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3 years ago