Express the quantity as a signed number.Losing 21 cents
A. -21 cents
B. 21 cents
Answer: A
Mathematics
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Perform the indicated operations.(2x - 
)(2x + 
)
A. 4x2 - 4x - 
B. 4x2 - 4x - 
C. 4x2 + 2x - 
D. 4x2 - 2x - 
Mathematics
Draw the given angle in standard position. Draw an arrow representing the correct amount of rotation. Find the measure of two other angles, one positive and one negative, coterminal with the given angle.130°
A. 310° and -50°
B. 310° and -50°
C. 490° and -230°
D. 490° and -230°
Mathematics
Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 1
C. 
D. 
Mathematics
Sketch a graph of f.f(x) = -x2 - 4
A. 
B. 
C. 
D. 
Mathematics