Question

What is the value of the expression 3^4 – 4^3?

Answer 1

@oneinmillon

Answer 2

you need a calculator as its

3 x 3 x 3 x 3 - 4 x 4 x 4 =

Answer 3

or just figure it out.
\[3^4:\]\[3*3 = 9\]\[3*3*3 = 9*3=27\]\[3*3*3*3=9*3*3=27*3=81\]
\[4^3:\]\[4*4=16\]\[4*4*4=16*4=64\]
\[3^4-4^3=\]

Answer 4

17?

Answer 5

Yes!

Answer 6

Which is 1024 written as a power of a number?

A.
4^5

B.
256^4

C.
5^4

D.
512^2

Answer 7

\[4^5= 4*4*4*4*4 = \]\[256^4=256*256*256*256 =\]\[5^4=5*5*5*5 =\]\[512^2=512*512=\]

Should be easy enough to eliminate B and D from consideration, as they'll be way too big. As for C, if you multiply a counting number by 5, can you ever have a final digit other than 0 or 5?

Answer 8

is it a???

Answer 9

as for choice A:
\[4^5 = 4*4*4*4*4 = (4*4)*4*4*4 = 16*4*4*4 = 16*(4*4)*4\]\[ = 16*16*4 = 256*4=1024\]

Answer 10

Which number is composite?

A.
17

B.
19

C.
23

D.
15

Answer 11

what does it mean for the number to be composite?

Answer 12

its 15 right???

Answer 13

well, 15 = 3*5

Answer 14

so thats it??

Answer 15

as I said, what does it mean for the number to be composite?

Answer 16

something can be multiplyed to get that number?

Answer 17

right, it has factors other than 1 and itself. does 15 have factors other than 1 and 15? If so, it is composite. No need to ask me, you can figure it out yourself!

Answer 18

Which is the prime factorization of 72?

A.
2^3 • 3^3

B.
2^4 • 3^3

C.
2^3 • 3^4

D.
2^3 • 3^2

Answer 19

??