Answer:
x = - 56/9 or -6.2
Step-by-step explanation:
The result of the expression in exponential form is 9^-4
<h3>Product of exponents</h3>
Given the expression below

According the product law, since the base are equal, we will add the exponent to have:

Hence the result of the expression in exponential form is 9^-4
Learn more on exponents here; brainly.com/question/11975096
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I am pretty sure the answers are A and C
9/7 or 1 2/7 is the answer. im pretty sure its right.
Answer: Fourth Option:
<em>"A tree with a height of 6.2 ft is 3 standard deviations above the mean"</em>
Step-by-step explanation:
It is said that an X value is found Z standard deviations from the mean mu if:

In this case we have that:


We have four different values of X and we must calculate the Z-score for each
For 


This means that: <em>A tree with a height of 5.4 ft is 1 standard deviation </em><em>above </em><em>the mean</em>
First Option: False
For 


This means that: <em>A tree with a height of 4.6 ft is 1 standard deviation </em><em>below </em><em>the mean</em>
Second Option: False
For 


This means that: <em>A tree with a height of 5.8 ft is </em><em>2 </em><em>standard deviation </em><em>above</em><em> the mean</em>
Third Option: False
For 


This means that: <em>A tree with a height of 6.2 ft is 3 standard deviations </em><em>above</em><em> the mean.</em>
Fourth Option: True