N = Number of years = 80 - 55 = 25
A = $400,000
r = 6% = 0.06
A = P(1 + r)^n
400,000 = P(1 + 0.06)^25 = P(1.06)^25 = 4.292P
P = 400,000 / 4.292 = $93,200
Answer:
How can you reduce the variability of a statistic? By taking a larger sample. Larger samples give smaller spread. Also by better design, such as stratified sampling. What effect does the size of the population have on the variability (spread) of a statistic?
Step-by-step explanation:
224million is the correct answer.
7/10 of 320,000,000 is 224,000,000
Answer:
x = 0, 6, -1
Step-by-step explanation:
We need to set f(x) = 0 to find the values of x for this expression.
So
![x^3-5x^2-6x=0](https://tex.z-dn.net/?f=x%5E3-5x%5E2-6x%3D0)
We will factor out an x and do middle term factorization to arrive at our answer for x (there will be 3 x values):
![x^3-5x^2-6x=0\\x(x^2-5x-6)=0\\x(x-6)(x+1)=0\\x=0,6,-1](https://tex.z-dn.net/?f=x%5E3-5x%5E2-6x%3D0%5C%5Cx%28x%5E2-5x-6%29%3D0%5C%5Cx%28x-6%29%28x%2B1%29%3D0%5C%5Cx%3D0%2C6%2C-1)
These are the 3 values for x.