Evaluate each of the following expression giving the answer in scientific notation

QAmmunity.org

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question

asked Aug 14, 2022 73.1k views

5 votes

Evaluate each of the following expression giving the answer in scientific notation

Mathematics
high-school

Fszlin asked

by Fszlin

3.4k points

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

2 votes

Answer:

Explanation:

$A) 5.3*10^(4)+4.7*10^(4)= (5.3 + 4.7)*10^(4)=10*10^(4)=10^(5)\\\\\\B) 3.7*10^(6) - 3.3*10^(6)=(3.7-3.3)*10^(6)=0.4*10^(6)=4.0*10^(-1)*10^(6)=4.0*10^(6-1)=4.0*10^(5)\\\\\\C) 4.8*10^(-3)+6.3^(-2)=4.8*10^(-2)*10^(-1)+6.3*10^(-2)\\\\=(4.8*10^(-1) +6.3)*10^(-2)\\\\=(0.48+6.3)*10^(-2)\\\\=6.78*10^(-2)\\\\\\D)6.6*10^(-5)-6.1*10^(-4)=6.6*10^(-1)*10^(-4)-6.1*10^(-4)\\\\=(6.6*10^(-1)-6.1)*10^(-4)\\\\=(0.66-6.1)*10^(-4)\\\\= (-5.44)*10^(-4)$