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Sholpan [36]
3 years ago
11

Use the associative property of addition to rewrite (20 + 11) + 5. Which expression is equivalent? O A. 5(20 + 11) B. (10 + 10 +

10) + 5 O C. 20 + (11 +5) D. (20 - 11) +5​
Mathematics
2 answers:
KATRIN_1 [288]3 years ago
6 0

Answer:

The answer is C

Step-by-step explanation:

Alex3 years ago
5 0

Answer:

i also needed help on this qustion and the awnser is

Step-by-step explanation:

C.

its the same problem and nothing changed besides the order↑≠≈

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This isn't a math question and should be in the science section. However, I will still answer the question. The answer is choice B.

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Here's a further breakdown

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B. True. The rays travel through a vacuum of space. If they couldn't travel through space, then the same problem comes up as in choice A: the issue of not feeling the sun's rays.

C. False. They rays have different frequencies. Because there are many wavelengths (see choice D below), this means there are different frequencies. Recall that f = 1/w where f is the frequency and w is the wavelength.

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So once again, the answer is choice B
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Step-by-step explanation:

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