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3 years ago

8

Explain how you could use a number line to show that -4 + 3 and 3 + (-4) have the same value. Which property of addition states

that these sums are equivalent?

2 answers:

gtnhenbr [62]3 years ago

8 0

I would say commutative.

swat323 years ago

6 0

I would say it is commutative too

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The difference between number 20 and its opposite is what percentage of 200? (if you do not remember: opposite of 15 is −15; opp

True [87]

20%

This is because 20 and it's opposite -20 is 40. (20 - -20 = 40). Then 40 is 20% of 200.

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3 years ago

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If who answers the question fast, correct and first, I WILL GIVE YOU THE BRAINLIEST!!!!!!!!!!

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2 years ago

Determine whether the relation is or is not a function.

soldier1979 [14.2K]

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3 years ago

What is the exact area and arc length of these sectors? Please helppp

Karolina [17]

<u>Answers with step-by-step explanation:</u>

1. Area of sector 1 = $\frac{90}{360} \times \pi \times 12^2 = 36\pi$

2. Area of sector 2 = $\frac{45}{360} \times \pi \times 19^2 = \frac{2527}{8} \pi$

3. Area of sector 3 = $\frac{270}{360} \times \pi \times 15^2 = \frac{675}{4} \pi$

4. Area of sector 4 = $\frac{270}{360} \times \pi \times 6^2 = 27 \pi$

5. Arc length of sector 1 = $\frac{90}{360} \times 2 \times \pi \times 12 = 6\pi$

6. Arc length of sector 2 = $\frac{315}{360} \times 2 \times \pi \times 19 = \frac{133}{4} \pi$

7. Arc length of sector 3 = $\frac{270}{360} \times 2 \times \pi \times 15 = \frac{45}{2}\pi$

8. Arc length of sector 4 = $\frac{270}{360} \times 2 \times \pi \times 6 = 9\pi$

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3 years ago

Solve –2k + 12 < 30 for k.

PIT_PIT [208]

Answer:

k > -9

Step-by-step explanation:

Subtract 12 from both sides as we want to isolate k-

30 - 12 = 18

-2k < 18

Divide both sides by -2

18/-2 = -9

k > -9

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3 years ago

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