Find the zeros of the polynomial function and state the multiplicity of each.f(x) = (x2 + 11x + 28)2
A. x = -2, multiplicity 4
B. x = 2, multiplicity 2; x = -2, multiplicity 2
C. x = 7, multiplicity 2; x = 4, multiplicity 2
D. x = -4, multiplicity 2; x = -7, multiplicity 2
Answer: D
Mathematics
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Use a trigonometric substitution to evaluate the integral.
A. tan-1 7 - tan-1 
B. tan-1 3 - tan-1 7
C. 
tan-1 7 - 
tan-1 
D. tan-1 
- tan-1 7
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Find the velocity vector in terms of ur and u?.r = a(8 - cos ?) and 
= 9
A. v = (9a sin ?)ur + 9a(8 - cos ?)u? B. v = (9a cos ?)ur + 9a(8 - sin ?)u? C. v = 9a(8 - cos ?)ur + (9a sin ?)u? D. v = (8a sin ?)ur + 8a(9 - cos ?)u?
Mathematics
Simplify the expression.j10
A. j B. -j C. 1 D. -1
Mathematics
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(3 + 2i)(9 + 3i)
A. 6i2 + 27i + 27 B. 21 - 27i C. 21 + 27i D. 33 + 9i
Mathematics