Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(3 + 2i)(3 - 7i)
A. 23 - 15i
B. -5 + 27i
C. 23 + 15i
D. -14i2 - 15i + 9
Answer: A
Mathematics
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Determine whether the given ordered pair is a solution to the system.(9, 2)8x - 4y = 643y = 6x - 47
A. Yes B. No
Mathematics
Find the function with the given derivative whose graph passes through the point P.r'(?) = 5 - csc2?, P
A. r(?) = 5? - cot? - 
? - 2
B. r(?) = 5? + cot? - 
? + 1
C. r(?) = 5? - cot? - 
? + 2
D. r(?) = 5? + cot? - 
? - 1
Mathematics
Evaluate the double integral
?
?
for the given function f(x, y) and the region R.
?
f(x, y) = 4x + 2y; R is bounded by x = 0, x = 4, y = 0 and y = x.
?
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Find y' if y = -3e4x2 - 5x + 3.
What will be an ideal response?
Mathematics