To calculate the z-statistic, we must first calculate the
standard error.
Standard error is standard deviation divided by the square
root of the population. In this case, it is equal to 2.68.
The z-score is defined the distance from the sample to the
population mean in units of standard error.
z = (195 – 208)/2.68 = -4.86
Answer:
-4 = ?
Step-by-step explanation:
<u>Step 1: Substitute -1 for x</u>
7x^3 + 5x^2 - 2 = ?
7(-1)^3 + 5(-1)^2 - 2 = ?
7(-1) + 5(1) - 2 = ?
-7 + 5 - 2 = ?
-4 = ?
Answer: -4 = ?
Answer:
x/12
Step-by-step explanation:
m = -9!
Proof:
![6=-\frac{2}{3}m\\\\[Multiply by 3 to cancel the fraction, the result is]\\\\6(3)=-2m\\18=-2m\\\\[Now divide by -2 to get your answer]\\\\m = -9](https://tex.z-dn.net/?f=6%3D-%5Cfrac%7B2%7D%7B3%7Dm%5C%5C%5C%5C%5BMultiply%20by%203%20to%20cancel%20the%20fraction%2C%20the%20result%20is%5D%5C%5C%5C%5C6%283%29%3D-2m%5C%5C18%3D-2m%5C%5C%5C%5C%5BNow%20divide%20by%20-2%20to%20get%20your%20answer%5D%5C%5C%5C%5Cm%20%3D%20-9)
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