Answer the question.Which one of the equations below matches the graph?
A. y = 2 cos
B. y = 4 cos
C. y = 4 cos(2x)
D. y = 4 sin
Answer: C
Mathematics
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Solve the problem.The regular price of a blanket is $25.50. During a November sale, the blanket was selling for 20% off the regular price. What was the sale price of the blanket? Round to the nearest cent.
A. $20.40 B. $19.90 C. $5.10 D. $4.60
Mathematics
Evaluate the expression for the given value of the variable.5(x + 4) + 24 for x = -9
A. -1 B. 94 C. -46 D. 1
Mathematics
Use power series operations to find the Taylor series at x = 0 for the given function.f(x) = cos2(10x)
A. 
+
B. 
+
C. 
+
D. 
+
Mathematics
Classify the triangle as scalene, isosceles, or equilateral.
A. equilateral B. isosceles C. scalene
Mathematics