Answer the question.Which one of the equations below matches the graph?
A. y = 4 cos
B. y = 4 sin
C. y = 2 cos
D. y = 4 cos
Answer: D
Mathematics
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Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
Mathematics
A graph of y = f(x) follows. No formula for f is given. Graph the given equation.y = 2f(x)
?
A. 
B. 
C. 
D. 
Mathematics
List all the elements of B that belong to the given set.B = {13, 
, -2, 0, 
, - 9, 6.4}Natural numbers
A. {-2, 0, 13}
B. {13, 0}
C. 
D. {13}
Mathematics
Find the standard form of the equation of a circle that satisfies the given conditions.Center at (-1, 0); radius 12
A. (x - 1)2 + y2 = 144 B. x2 + (y - 1)2 = 12 C. (x + 1)2 + y2 = 144 D. x2 + (y + 1)2 = 12
Mathematics