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OpenStudy (anonymous):
evaluate the expression when a=3 4a^4 A. 324 B. 48 C. 28 D. 11
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geerky42 (geerky42):
plug in 3. 4(3)^4
geerky42 (geerky42):
Can you calculate 4(3)^4?
OpenStudy (anonymous):
so that would be... 4*3=12.. 12^4 = 20, 736 im confused..
geerky42 (geerky42):
Remember PEDMAS? Parentheses first, but it is already done, so now exponents. Do exponents first. After this, next is multiplication and division. Multiply.
geerky42 (geerky42):
So you do 3^4 first then multiple it by 4.
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OpenStudy (anonymous):
OHH YEA I DIDNT THINK ABOUT THAT. so its 3^4=81, 81*4=324 which is A. thank you.
geerky42 (geerky42):
Welcome!
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