menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times 10^{-12}
Ask a Question
Questions
Unanswered
Tags
Ask a Question
In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times 10^{-12}
asked
Feb 23, 2017
170k
views
1
vote
In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times 10^{-12}
Mathematics
middle-school
Sergeon
asked
by
Sergeon
8.4k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
7
votes
2.3 x 10⁻³
5.4 x 10⁻⁴
It is better to add this using standard form because these two have different decimal places.
2.3 x 10⁻³ ⇒ 0.00230
5.4 x 10⁻⁴ ⇒
0.00054
0.00284
0.00284 in scientific notation is
2.84 x 10⁻³
Vu Dang
answered
Feb 28, 2017
by
Vu Dang
8.3k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Mar 20, 2015
91.2k
views
In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}? a. 2.84 times 10^{-3} b. 5.63 times 10^{-3} c. 7.7 times 10^{-7} d. 12.42 times 10^{-12}
Manuel Quinones
asked
Mar 20, 2015
by
Manuel Quinones
8.4k
points
Mathematics
middle-school
1
answer
4
votes
91.2k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org