We have that
(w^5*z^2)*(-9*w^2*z^<span><span>5)</span>
</span><span>Multiplying exponential expressions
we know that
</span>w^5<span> multiplied by </span>w^<span>2 = w</span>^<span>(5 + 2) = w</span>^7
and
z^2<span> multiplied by </span>z^<span>5 = z</span>^<span>(2 + 5) = z</span>^7
therefore
(w^5*z^2)*(-9*w^2*z^5) =-9*( w^7)*( z^7)
-9*( w^7)*( z^7)=-(3^2)*( w^7)*( z^7)
the answer is
-(3^2)*( w^7)*( z^7
Answer:
Z-score = 1.18
Step-by-step explanation:
The z-score measures how many standard deviations from the mean a data is
Therefore the z score is the quotient between the difference between a value and the mean and the standard deviation
![Z =\frac{X-\mu}{\sigma}](https://tex.z-dn.net/?f=Z%20%3D%5Cfrac%7BX-%5Cmu%7D%7B%5Csigma%7D)
Where
μ is the mean, x is a data of the population and
is the standard deviation
In this case
![\mu =101\\\\\sigma = 3.4\\\\X = 105](https://tex.z-dn.net/?f=%5Cmu%20%3D101%5C%5C%5C%5C%5Csigma%20%3D%203.4%5C%5C%5C%5CX%20%3D%20105)
Then the z-score is
![Z = \frac{105-101}{3.4}\\\\Z = 1.18](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7B105-101%7D%7B3.4%7D%5C%5C%5C%5CZ%20%3D%201.18)
Actually I don't know the answer but what I thing is none of the above.