Answer:
6.7ft
Step-by-step explanation:
190÷28=6.7 is correct
Answer:
8a+2b+c
Step-by-step explanation:
13a-4b+8c
-(5a-6b+7c)
simplify second equation: -5a+6b-7c (multiplying -1 by each number)
now solve
13a-4b+8c
-5a+6b-7c
= 13a-5a-4b+6b+8c-7c (combining both equations, and like terms)
solve:
8a+2b+1c
= 8a+2b+c
Im not 100% sure but i kinda see 156000 as you answer
Step-by-step explanation:
(x-3)(x^2+2x+1)
=x^3-3x^2+2x^2-6x+x-3
=x^3+2x^2-3x^2-6x+x-3
=x^3-x^2-5x-3
___________
9.3*10^34 divided by 3.1*10^17 is 3*10^17 in scientific notation :)