Question

What is the value of the expression?
3 -5
4 • 4

A.
4−15

B.
4−2

C.
42

D.
48

Answer 1

\[4^3 \cdot 4^{-5}\] use `^` to represent exponents

exponent rule: \[\large\rm x^n \cdot x^m = x^{n+m}\] when we multiply same base we should add their exponents.

Answer 2

ok

Answer 3

ok let me know what you get :=))

Answer 4

64*1024

Answer 5

uh huh don't use calculator.

Answer 6

why not

Answer 7

just add the exponents
here is an example \[\huge\rm 2^4 \cdot 2^3 = 2^{4+3}=2^7\]

Answer 8

? but thats not a b c or d

Answer 9

because thats what they want u to do

Answer 10

what do you mean ??

Answer 11

u said 2^7

Answer 12

in this expression `4^3`
base is 4 and exponent is 3
`4^{-5}` base is 4 and exponent is -5
because bases are the same and there is multiplication sign you have to add the exponents

Answer 13

yes because 4+3 =7
correct ?

Answer 14

i get that but that cant be the answer if its not one of the option

Answer 15

i have mentioned that is an example ...

Answer 16

do the same thing \[4^3 \cdot 4^{-5}\] for this question

Answer 17

ok i feel dum now lol

Answer 18

no you're not. :=))

Answer 19

alright add the exponents what would you get ?