Find the product. Write the product in rectangular form, using exact values.[4(cos 315° + i sin 315°)] [6(cos 225° + i sin 225°)]
A. -24i
B. 24
C. 24i
D. -24
Answer: D
Mathematics
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Solve the problem.The length of the ellipse x = a cos t, y = b sin t, 0 ? t ? 2? is Length = 4a
where e is the ellipse's eccentricity.Use Simpson's Rule with n = 6 to estimate the length of the ellipse when a = 2 and e = 
.
A. 11.8956 B. 12.1751 C. 11.2546 D. 12.2097
Mathematics
Evaluate the algebraic expression.
x
when x = 12
A. 15
B. 
C. 
D. 8
Mathematics
Determine whether the given value is a solution to the given equation.Is 0.05 a solution of -5.6x = -2.8?
A. Yes B. No
Mathematics
Provide an appropriate response.The process of amortization includes which of the following?
A. a specific length of time B. equal payments C. variable rates D. both equal payments and a specific length of time
Mathematics