What are the restrictions of q²+3q-4 over q²-7q-8, and why? a. q≠ -1 and q≠ 8 b. q≠ -1 and q≠4 c. q≠ 1 and q≠-8

A. q≠ -1 and q≠ 8

Step-by-step explanation:

the restrictions are based on the denominator

(q²-7q-8)

factor this

(q-8) (q+1)

using the zero product property

q-8=0 and q+1 =0

q =8   q=-1

the denominator cannot equal zero so q≠ 8 and q≠-1

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.