Find the perimeter of the polygon.
A. 5 m
B. 3 m
C. 4 m
D. 6 m
Answer: D
Mathematics
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Find the derivative of y with respect to the independent variable.y = 9cos ??
A. 9cos ?? B. -9cos ?? ln 9 sin ?? C. -?9cos ?? ln 9 sin ?? D. ?9cos ?? ln 9
Mathematics
Use the Laws of Exponents to simplify. Write the answer with positive exponents. All variables are nonzero.
A. 
B. 4y
C. 2x6y
D. 
Mathematics
Without using the trigonometric function keys, use a calculator and the given trigonometric values to find the indicated value.Given:sin 21° = 0.3584cos 21° = 0.9336tan 21° = 0.3839Find csc 159°.
A. -1.0711 B. 2.7902 C. 1.0711 D. 0.3584
Mathematics
Subtract.-9 - (-8)
A. 17 B. -1 C. -17 D. 1
Mathematics