Find the exact value of the expression. Do not use a calculator.1 - tan2 75° + csc2 15°

A. -1
B. 1
C. 2
D. 0


Answer: C

Mathematics

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Find the equation of the line passing through the indicated two points in standard form.(-5, 0) and (3, -3)

A. 5x - 6y = -3 B. -3x - 8y = 15 C. 3x - 8y = 15 D. -5x + 6y = -3

Mathematics

The diameter x (in inches) of a batch of ball bearings manufactured by PAR Manufacturing satisfies the inequality ? ? What is the smallest diameter a ball bearing in the batch can have? ?

A. 0.78 inches B. 0.76 inches C. 0.8 inches D. 0.75 inches E. 0.7 inches

Mathematics

Use Cramer's rule to solve the system.5x + 3y = -133x +  y = -11

A. {(4, -5)} B. {(-4, -5)} C. {(5, -4)} D. {(-5, 4)}

Mathematics

Find , when

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Mathematics