Solve equation by using the quadratic formula.
x + 4x = -4
a. X=-2
b. x=-4
C.
d.
X=-4, X = 4
x = 0, x = 4
Please select the best answer from the choices provided
0 A
0 B
0 C
0D

x=-0.8

Step-by-step explanation:

x+4x=-4

5x=-4

x=-4/5

x=-0.8

x = -2

Step by Step explanation:

got it right on ed

with btw u said 100pts but it clearly says

i answerd and just got 10pts

no hate

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt