Multiply and simplify.sin ? (sec ? tan ? + csc ? + cot ?)
A. 1 + 2 sin2?
B. sin2? - 1 + cos ?
C. sin ? + 2 sec ?
D. sec2? + cos ?
Answer: D
Mathematics
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Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Mathematics
Solve the quadratic equation.x(x - 1) = 20
A. {-4, 5} B. {4, 5} C. {-5, -4} D. {1, 20}
Mathematics
Graph.36(x + 1)2 + 25(y + 4)2 - 30 = 870
A. 
B. 
C. 
D. 
Mathematics
Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, mL, kg, g, and mg.The circumference of the coin is 25 
.
A. g B. mm C. mg D. cm E. mL
Mathematics