f(x) = x^3 + 5x^2 - 4x - 20
The zeros of the polynomial function: x^3 + 5x^2 - 4x - 20 = 0
x^3 + 5x^2 - 4x - 20 = 0
x^2(x + 5) - 4(x + 5) = 0
(x^2 - 4)(x + 5) = 0
(x + 2)(x - 2)(x + 5) = 0
(x + 2) = 0; x = -2
(x - 2) = 0; x = 2
(x + 5) = 0; x = -5
Answer is the first one
x = -5, x = -2, x = 2
1 / 4.5 = x / 39....1 inch to 4.5 ft = x inches to 39 ft
cross multiply
(4.5)(x) = (1)(39)
4.5x = 39
x = 39 / 4.5
x = 8.7 inches <==
Answer:
365
Step-by-step explanation:
The discount is 30 %
That means we pay 70 %
original price * 70% = 255.50
Change to decimal form
original price * .70 = 255.50
divide each side by .70
original price * .70/.70 = 255.50/.70
original price =365
There are 8 pints in a gallon. So Zack’s statement is nonsense. Angela’s makes sense. 1 pint = 1/8 of a gallon.
