Answer:
10.56%
Step-by-step explanation:
We are given A compact disc is designed to last an average of 4 years with a standard deviation of 0.8 years.
We are supposed to find What is the probability that a CD will last less than 3 years
We will use z-score formula:
Substitute the values in the formula
Now refer the z score table
So, the value of -1.25 is 0.1056 =
Thus , the probability that a CD will last less than 3 years is 10.56%
Answer
-7, -1, 1, 2
Step-by-step explanation:
Answer:
37.7
Step-by-step explanation:
The formula is C = 2 • 3.14 • r , you multiply the radius by pi/3.14, then you multiply that by product by 2.
Answer:
Step-by-step explanation:
Use synthetic division to answer this. If the remainder is zero, then we can safely assume the divisor (x + 7) is a factor of the polynomial f(x)= x^3-3x^2+2x-8.
We use -7 as the divisor in synth. div. This comes from the factor (x + 7):
-7 / 1 3 2 -8
-7 28 -210
-------------------------
1 -4 30 -218
Here, the remainder is -218, not zero, so no, (x+7) is not a factor of f(x)= x^3-3x^2+2x-8.
Answer:
Step-by-step explanation: