Use a double-angle identity to find the exact value of the expression.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find an equation for the line tangent to the curve at the point defined by the given value of t.x = t, y = 
, t = 18
A. y = 
x
B. y = - 
x - 3
C. y = - 
x
D. y = 
x + 3
Mathematics
Find the sign of the six trigonometric function values for the given angle.56°
A. Positive: tangent and cotangent; negative: sine, cosine, secant, cosecant B. Positive: cosine and secant; negative: sine, tangent, cotangent, cosecant C. Positive: sine and cosine; negative: tangent, cotangent, secant, cosecant D. Positive: all
Mathematics
Solve the problem.In one town, 238 of the 1750 people who voted in the last presidential election are Hispanic. What percent is this?
A. 7% B. 0.136% C. 13.6% D. 70%
Mathematics
Graph the parabola.y = 4x2 + 6
A. 
B. 
C. 
D. 
Mathematics