Answer:
w =
or w = 
Step-by-step explanation:
5w^2 - 90 = 0
5w^2 + 0w - 90 = 0
aw^2 + bw + c = 0 ----> a = 5, b = 0, c = -90




or 
or 
or 
Hope this helps!
Answer:
2.75 lbs
Step-by-step explanation:
because if you double 2.75, it equals 5.5
Answer:
x = -3/8
Step-by-step explanation:
4(3 - 2x) = 15
Distribute
12 -8x = 15
Subtract 12 from each side
12-8x-12 =15-12
-8x =3
Divide by -8
-8x/-8 = 3/-8
x = -3/8
-5/12 + (-1/4) + 3/12
Find the least common denominator.
-5/12 - 3/12 + 3/12
Combine like terms.
-5/12 is your final answer.