Question

Evaluate the expression if a = 2.

5a4














A.

30











B.

40











C.

60











D.

80

Answer 1

@osx

Answer 2

@phi

Answer 3

this is another "do the arithmetic"

Answer 4

52^4

Answer 5

@phi

Answer 6

yes but 5a^4 is short for 5*a^4
so write it
5*2^4

and 2^4 is short for 2*2*2*2
so you have
5*2*2*2*2

(but most calculators can do 2^4 without expanding it into 2*2*2*2)

Answer 7

so wat would the answer be i hace i minute left @phi

Answer 8

multiply out the numbers

Answer 9

i alraedy got the answer thanks