A = -5 b= 7 -2b + a ( Worth 10 points)
2 answers:
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<u>Answer:</u>
(-1, 5)
<u>Step-by-step explanation:</u>
The center of a circle is the midpoint of the diameter.
So we have to calculate the midpoint of the diameter, using this formula:
midpoint = ( ,
)
= ( ,
)
= (-1, 5)
∴ The center of the circle lies at the point (-1, 5).
Answer:
The critical value for the 95% confidence interval is z = 1.96.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of
So it is z with a pvalue of , so z = 1.96.
The critical value for the 95% confidence interval is z = 1.96.
Answer:
The factors for the given polynomial is (x-y) and (a+1)
Therefore
Step-by-step explanation:
Given polynomial expression is
To simplify the given polynomial:
( Rewritting the above polynomial)
(Taking the common terms )
(using commutative property )
(taking common factor )
Therefore
Therefore the factors for the given polynomial is (x-y) and (a+1)