3 years ago

Please help I suck at math and this is for a grade

Mathematics

2 answers:

qwelly [4]3 years ago

6 0

C. negative exponents always go at the bottom

Alexandra [31]3 years ago

4 0

The answer is A. If you divide by 2 negatives you get a positive 2 to the second power.

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Masteriza [31]

Answer:

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3 0

3 years ago

A newborn baby had about 26,000,000,000 cells. An adult has about 4.94 times 10 to the 13 power cells. How many times as many ce

Tom [10]

2.6 • 10^10 = 26,000,000,000
4.94 • 10^13 = 49,400,000,000,000

49,400,000,000,000/26,000,000,000= 1900

And adult had 1900 times more cells than a newborn. Or if you want to put it in scientific notation it would be 1.9 • 10^3

4 0

3 years ago

How many points do you need in order to name a ray?<br> O<br> one<br> four<br> о<br> three<br> two

yawa3891 [41]

<h3>Answer: D) Two</h3>

You need the starting point, and another point that helps direct where the ray is aimed. Call these two points A and B.

Saying "Ray AB" means we extend a line through AB such that the line goes forever through B and beyond B, but we do not do the same for point A. The point A is effectively a cliff where no road goes on the other side of it. Check out the diagram below to see what I mean. The arrow means the line goes on forever in that direction.