Asked by Shelby J.

3. Select all of the numbers that are correctly written in scienctific notaton
A)42 x 10^5
B) 1.1 x 10^4
C) 7.0 x 20^4
D) 6.01 x 10^-4
E) 18.0 x 10^3

4. Simply
(2.0 x 10^4)(3.0 x 10^3)

A)6.0 x 10^7
B) 6.0 x 10^12
C) 6.0 x 10^5
D) 6.0 x 10^43

5. (7.0 x 10^6)+(2.0 x 10^6)

A)9.0 x 10^4
B) 9.0 x 10^12
C)9.0 x 10^6
D) 9.0 x 10^10
Answered by Steve
just remember that in SN, a number is written in two parts:

N x 10^p
where 1.0 <= N < 10.0
p is an integer

With that in mind, what are your choices?
Answered by Shelby J.
I think 3 is A and E I think 4 is C and I think 5 is A
Answered by Steve
#3 A? Really? Is 42 between 1 and 10?
B,C,D are all SN.

#4 A
(2.0 x 10^4)(3.0 x 10^3)
= (2.0)(3.0) x (10^4*10^3)
= 6.0 x 10^7

#5 C
Remember the distributive rule?
ac + bc = (a+b)c

(7.0 x 10^6)+(2.0 x 10^6)
= (7.0+2.0)x10^6
= 9.0x10^6

You clearly need to study up on the rules of exponents. Scientific notation is not mysterious, but you do have to remember the basic rules of arithmetic.
Answered by Really?
Steve, most of your answers are wrong.
Answered by Lincoln B.
Shelby each one of those answers are entirely wrong you sack of crap.
1.C
2.D
3.B,D
4.A
5.C
here are the correct answers guys!
Answered by AlexaBliss<3
Lincoln B. Is correct thank you 100%
Answered by Kokichi
Lincoln is right.
Answered by Hal
1. C
2. D
3. B and D
4. A
5. C

Scientific notation practice 8th. Unit 3 lesson 7
Answered by :( im struggling in school so i hope i pass this
Hal you are my life saver thank you much
Answered by googoogaga
hal is right i got a 100
Answered by :V
Hmm @googoogaga If hal is right then Lincoln B. is right plus Lincoln was the first to give the answers sooo Hal copied Lincoln i mean Hal might have not but hal submited thier answers at a wayyy different time :/
Answered by Yeet
The answers for connexus are
C
D
BD
A
C

I just took the practice and these are all correct
Answered by molls
guys stop hating on shelby. she is trying her best to help u cheaters that wont actual LEARN and not cheat. let me tell u you will regret it one day. i am here to CHECK my answers and learn from next time. you guys are disgusting that ur hating on others just because ur too lazy to do your actual work. u guys deserve the rot
Answered by 10110
molls respectfully shut the hell up
Answered by molls needs to shut up
the name says it all
Answered by Imao
Imao
Answered by School is scary bro
Answers from Lincoln are still right in 2022 :]
There are no AI answers yet. The ability to request AI answers is coming soon!