Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
dusty
Group Title
Which number is equal to 7(3.5 x 10^4) written in scientific notation?
24.5 x 70^4
2.45 x 10^5
24.5 x 10^4
1.05 x 10^5
 one year ago
 one year ago
dusty Group Title
Which number is equal to 7(3.5 x 10^4) written in scientific notation? 24.5 x 70^4 2.45 x 10^5 24.5 x 10^4 1.05 x 10^5
 one year ago
 one year ago

This Question is Closed

fallingforamber Group TitleBest ResponseYou've already chosen the best response.0
24.5 x 10^4 7*3.5 = 24.5
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.1
A number written is scientific notation consists of two parts. The first part is a number x, such that 0 <= x < 10. The second part is a power of ten which multiplies the first part. Notice that the first part is between 0 and 10. When you multiply the numbers 7(3.5 x 10^4) = 7 x 3.5 x 10^4 = 24.5 x 10^4, but this is not scientific notation because 24.5 is not between 0 and 10. In order to make it scientific notation, you need to divide 24.5 by ten, to get 2.45. In order not to change the number, the power of ten has to be multiplied by 10 24.5 x 10^4 = 2.45 x 10 x 10^4 = 2.45 x (10 x 10^4) = 2.45 x 10^5
 one year ago

dusty Group TitleBest ResponseYou've already chosen the best response.0
i get it! thanks @mathstudent55 ur the best!!!!
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.