Simplify.
A. x4
B. x2
C. x4
D. x2
Answer: B
Mathematics
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For the given polar equation, write an equivalent rectangular equation.r = 5 sec ?
A. x2 = 5 B. x = 5 C. y = 5 D. x2 + y2 = 5
Mathematics
Plot the point in a polar coordinate system.
A. 
B. 
C. 
D. 
Mathematics
Write as an equivalent decimal. If a repeating decimal is obtained, use notation such as 0.
, 0.
, or 0.
.
A. 0.6875
B. 0.68
C. 0.6
D. 0.687
Mathematics
Use the even-odd properties to find the exact value of the expression. Do not use a calculator.sin (-30°)
A. 
B. 
C. - 
D. - 
Mathematics