The length of hospital stays for Covip-18 disease is normally distributed with average of 14 days and standard deviation of 7 days. What is the probability that the hospital
stays are longer than 14 days?
A. 0.5
B. 0.3085
C. 0.6915
D. 1​

109 is the nearest whole number/final answer! : )

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.