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Zigmanuir [339]
2 years ago
9

PLEASE HELP!!! In the diagram, line AB is a perpendicular bisector of segment CD. What is the length of CD?

Mathematics
1 answer:
ra1l [238]2 years ago
6 0

Answer:

12

Step-by-step explanation:

AD is 6. a bisector splits a line in half. X would equal 6 meaning AD would equal 12.

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How can csc^2-cot^2 = 1?
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ANSWER

By simplifying the left hand side using the Pythagorean Identity.

EXPLANATION

The given identity is

\csc^{2} (x) -  \cot^{2} (x) = 1

Take the left hand side and simplify to get the right hand side.

\csc^{2} (x) -  \cot^{2} (x) =  \frac{1}{\sin^{2} (x)}  - \frac{ \cos^{2} (x)}{\sin^{2} (x)}

Collect LCM for the denominators.

\csc^{2} (x) -  \cot^{2} (x) =  \frac{1 -  \cos^{2} (x)}{\sin^{2} (x)}

Recall the Pythagorean Identity.

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This implies that:

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We substitute this to get,

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6 0
3 years ago
The school auditorium has 80 rows of seats. There are 50 seats in each row. What is the total number of seats in the chhool audi
Snezhnost [94]
The number of rows = 80

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Step-by-step explanation:

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