A community for students.
Here's the question you clicked on:
 0 viewing
Spring98
 one year ago
Which expression is equivalent to 3^2 • 3^–5?
A. 1/3^3
B. 1/3^7
C. 1/3^3
D. 1/3^7
Spring98
 one year ago
Which expression is equivalent to 3^2 • 3^–5? A. 1/3^3 B. 1/3^7 C. 1/3^3 D. 1/3^7

This Question is Closed

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1Use the rule \[\LARGE x^{\color{red}{a}}*x^{\color{blue}{b}} = x^{\color{red}{a}+\color{blue}{b}}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1For example \[\LARGE x^{\color{red}{2}}*x^{\color{blue}{3}} = x^{\color{red}{2}+\color{blue}{3}}=x^{5}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1what do you get when you use that rule (ignore the answer choices right now)

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1write out the whole thing, not just the exponent

Spring98
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442278377207:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1I meant to include the base

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1look back at the rule I posted

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so what does \(\LARGE 3^2*3^{5}\) turn into when you use that rule?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1next comes the rule \[\LARGE x^{a} = \frac{1}{x^a}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1do you see in the last rule how the `a` exponent turned into `a` (without the negative) ?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so basically that rule is saying "if the exponent is negative, you take the reciprocal of the base to make the exponent positive"

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1example \[\LARGE 2^{7} = \frac{1}{2^7}\]

Spring98
 one year ago
Best ResponseYou've already chosen the best response.1ok so that means it is not negative anymore so that the answer will be 1/3^3 right?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yes, \[\LARGE 3^{3} = \frac{1}{3^3}\]

Spring98
 one year ago
Best ResponseYou've already chosen the best response.1thank you very much!!!
Ask your own question
Sign UpFind more explanations on OpenStudy
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.