Answer:
10x^{3}[/tex]
Step-by-step explanation:

=10·10·10
=1000
Answer:
C. 3/4 and 6/8
<em>good luck, i hope this helps :)
</em>
Let
x-------------> <span>the length of a rectangle
y-------------> the </span>width of a rectangle
we know that
x+y=130-----------> equation 1
and
x=1.6y--------------> equation 2
<span>I substitute 2 in 1
(1.6y)+y=130-------------> 2.6y=130------------> y=130/2.6------> y=50 ft
x=1.6y--------> x=1.6*50---------> x=80 ft
the answer is
</span>the length is 80 ft
the width is 50ft
(8x-5)(2x+1)
Check: 16x^2+8x-10x-5
16x^2-2x-5