Question

A beam light of light can travel about 3 meters in 0.00000001 second. Which of the following show 0.00000001 written in scientific notation?
A. 1x10^-7
B. 10x10^-7
C. 0.1x10^-6
D. 1x10^-8

Which shows the expression below in its simplest form?
3x^2-30x+75/3x-15
A. x-5
B. x^2-10x+15/x-5
C. 3x-10x-5
D. x^2-10x+25/x-5

Answer 1

Do y'all know the answers?

Answer 2

I will fan and medal

Answer 3

Number 1 is definitely not C or B, so what do you think it is?

Answer 4

I mean C or D*

Answer 5

happyfeet googled the question!!!!!

Answer 6

A

Answer 7

No I didn't.. It's quite obvious it's not c or d

Answer 8

Yes, it is A. :)

Answer 9

Number 2, I'm not sure about.

Answer 10

One moment.

Answer 11

Okay

Answer 12

the first one is D and the second one i think is D also im not too sure one the second one

Answer 13

http://openstudy.com/study#/updates/5378e217e4b0ba022d370ad7 It says that happyfeet is viewing the question!

Answer 14

So are you! HAHA

Answer 15

And I'm viewing it because I'm not sure about it.

Answer 16

oh nvm the second is A

Answer 17

The first one isn't D

Answer 18

Idc I just want my answers, unlike you.

Answer 19

The 2nd is A

Answer 20

yes and the first is D

Answer 21

Lol, well number one I would go with A unless Dmex want's to explain why he thinks it's D.. :/

Answer 22

it's true!

Answer 23

Wait, @Dmex did you count the first "0"?

Answer 24

Okay, nevermind.. I agree with @Dmex

Answer 25

I believe it's A

Answer 26

Yeah, me too.. But if you're supposed to count the first 0 then it would be D

Answer 27

Yeah, I would go with D @I_love_my_nieces :)

Answer 28

yea because start counting for when the Decimal is at and stop until it is behind the one and that would be 8

Answer 29

For the 2nd one?

Answer 30

its A

Answer 31

go to https://www.mathway.com/

Answer 32

.00000001 = 1*10^-8

Answer 33

We already covered that @sushant20902179

Answer 34

Do you know number 2? @sushant20902179

Answer 35

what's my answers cause i'm confused

Answer 36

1 is definitely D.

Answer 37

But I'm unsure about number 2.. @Dmex says it's A.

Answer 38

I think it's B

Answer 39

@dan815 @Hotchellerae21

Answer 40

B does make sense, but I'm not sure it's the answer.

Answer 41

u r sure that all the options given are correct

Answer 42

the answer for the 2nd one is A

Answer 43

Yes

Answer 44

Explain why?

Answer 45

Mathway.com