The population standard deviation for the number of pills in a supplement bottle is 16 pills. if we want to be 95% confident that the sample mean is within 5 pills of the true population mean, what is the minimum sample size that should be taken?

45

step-by-step explanation:

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.

i am unable to solve this problem

step-by-step explanation:

1. perpendicular

2. parallel

3. perpendicular