Use a negative-angle identity to write an equivalent trigonometric expression involving a positive angle.csc 
A. -csc 
B. csc 
C. sec 
D. 1 - csc 
Answer: A
Mathematics
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Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5
Mathematics
Calculate in decimal form. 7
+ 9.275
A. 9.275 B. 16.67 C. 16.65 D. 1.9
Mathematics
Decide whether or not the set of ordered pairs defines a function.{(-3, 5), (-2, -9), (3, -8), (3, 6)}
A. No B. Yes
Mathematics
State if the vectors a and b are perpendicular, parallel, or neither. If a and b are parallel, state whether they point in the same direction or in opposite directions.a = 
, b = 
A. Parallel, opposite directions B. Parallel, same direction C. Perpendicular D. Neither
Mathematics