Define binomial probability experiment
2 answers:
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Answer: a. 90°
Step-by-step explanation:
We know that the in a circle, the measure of an inscribed angle is half the measure of the central angle with the same intercepted arc.
In the problem∠XYZ is the inscribed angle
∠XYZ=
⇒ ∠XYZ=
Since XZ is a diameter of the circle which is a line segment, thus ∠XZ=180°
∴ ∠XYZ=
∴ ∠XYZ=
Therefore, a. 90° is the measure of ∠XYZ.
Given:
To find:
The LCD of the fractions.
Solution:
LCD means least common denominator.
Let us find the least common multiplier for the denominator.
The denominators are .
Factor :
Take a common in first 2 terms and -6 common in next two terms.
Take out common factor (a - 1).
------------- (1)
Factor :
Using identity:
------------- (1)
From (1) and (2),
LCM of
Therefore LCD is (a - 1)(a - 6)(a + 6).