Answer:

⇒
[Factorized form]
Step-by-step explanation:
Given expression:

We need to make
the subject.
In order to do that we need to solve the expression for
in terms of
and 
We have,

Subtracting both sides by 


Taking square root both sides in order to remove square of 


The difference of squares can be factorized and written as:
[difference of squares
]
Answer:
-750
Step-by-step explanation:
Q(h)=-8h^2-5h ,
Let x = -10
q(-10) = -8 (-10)^2 -5(-10)
=-8 *100 +50
=-800+50
= -750
Answer:
B
Step-by-step explanation:
Variance can be said to be a measure of dispersion for a random sample.
Variance = pq/n
When given the variance, we can find the standard deviation.
Standard deviation = √variance
= √pq/n
7 / 12 = 0.583333333
Divide them all to see which one equals 0.583333333.
A.
8 / 13 = 0.615384615
B.
10 / 15 = 0.666666667
C.
14 / 19 = 0.736842105
D.
21 / 36 = 0.583333333
Therefore, your answer is D.
Answer:
the answer is in the photo below