Question

1. write the result in scientific notation (1.7∙10^1)(7 ∙ 10^5)
A. 8.5 ∙ 10^-9
B. 8.5 ∙ 10^20
C. 6.7 ∙ 10^-9
D.6.7 ∙ 10^20

Answer 1

@AloneS

Answer 2

2. simplify the expression 7t^4*7t^4
A. 49t^8
B. 14t^4
C. 49t^16
D. 14t^8

Answer 3

I actually don't know for number 1 try to use this link https://mathway.com/
for number two i got \( 7*t^4*7*t^4 \)
\( 49*t^8 \)
\(49t^8 \)

Answer 4

ok um i have another question hold onn a sec

Answer 5

3.simplify the expression -x(5x-4)
A. 4x^2 - 5x
B. -5x - 4x
C. 5x + 4x
D. -5x^2 + 4x

4. simplify the expression 4k^2 (-3k^2 - 4k + 5)
A. -12k^4 - 16k^3 + 20k^2
B. 12k^4 - 16k^3 + 9k^2
C. -12k^3 + 20k
D. k^4 + 9k^2

Answer 6

For numebr 4
(−x)(5x−4)
(−x)(5x+−4)
(−x)(5x)+(−x)(−4)
−5x^2+4x

For number 5
(4k^2)(−3k^2+−4k+5)
=(4k^2)(−3k^2)+(4k^2)(−4k)+(4k^2)(5)
=−12k^4−16k^3+20k^2