Answer:
b=4
Step-by-step explanation:
Lets a be lenght and b width. From text we have:
a=b+4
a*b=32
Put the first equation in the 2n, we get:
(b+4)b=32
b^2+4b-32=0
b^2+8b-4b-32=0
b(b+8)-4(b+8)=0
(b+8)(b-4)=0
So it must be b=-8 or b=4. We know that width cannot be negative, so it is 4.
Answer:
x is any integer except for -1
Step-by-step explanation:
If you substitute -1 for x, the denominator value would be 0, or undefined.
For this reason, x cannot be -1, which is mathematically known as an extraneous value.
Out of those options centimeter because it’s small but not as small as a millimeter is
