Question

8


livelifefully101
Really need help with these ? ASAP!!
1. Which numbers are greater than 3*10^-7
Check all that apply
A. 9*10^-9
B. 2*10^-5
C. 6*10^-7
D. 5*10^-8
E. 2*10^-7

2. Which is the best order of magnitude estimate for 29,300?
A. 10^4
B. 10^5
C. 10^6
D. 10^7

3. What is the best order of magnitude estimate for 0.00006?
A. 10^-3
B. 10^-4
C. 10^-5
D. 10^-6

*Thank u so much in advance..I've tried these problems many times and I keep getting them wrong so I really need help!

Answer 1

this right there is cheating

Answer 2

soory to be mean but this a is a place to study

Answer 3

Okay for the first one, when something is negative the closest thing to zero is the highest. You don't even have to do the math. just look at the exponent.

Answer 4

I'm teaching her not giving answers.

Answer 5

then could u help me because I don't get it...

Answer 6

#1

The one's with the greater exponents are larger.

In this case, B and C.

Answer 7

ohh ok like hints right

Answer 8

Yeah, and you might want to listen to @iGreen cause it's been a while since I've done this.

Answer 9

oh ok

Answer 10

For the 2nd one, I'd say A.

It's the closest one to 29,300.

Answer 11

That's what I thought but I wasn't sure...then what would 3 be d?

Answer 12

No, it would be C.

It has 5 zeroes, so exponent = -5.

Answer 13

Welcome to Open Study!

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