Provide an appropriate response.What form do planes perpendicular to the y-axis have in cylindrical coordinates?
A. r = a sin ?
B. r = a cos ?
C. r = a csc ?
D. r = a sec ?
Answer: C
Mathematics
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Multiply.(2.4x - 5y)(3.2x + 6y)
A. 7.68x2 - 1.6xy - 30y2 B. 7.68x2 - 30.4xy - 30y2 C. 7.68x - 1.6xy - 30y D. 7.68x2 - 30y2
Mathematics
Find the value of c for which the expression is a perfect square trinomial. Then factor the perfect square trinomial.x2 - 2x + c
A. c = 4; x2 - 2x + 4 = (x - 2) 2 B. c = -1; x2 - 2x - 1 = (x - 1) 2 C. c = -4; x2 - 2x - 4 = (x - 2) 2 D. c = 1; x2 - 2x + 1 = (x - 1) 2
Mathematics
Add or subtract. Assume all variables represent positive real numbers.
- 
A. 4
- 3
B. 7
C. 3
- 4
D. 3 - 4
Mathematics
Find all of the real and imaginary zeros for the polynomial function.f(x) = 6x3 + 16x2 + 6x - 4
A. 
, 
, - 2
B. - 
, - 2, 
C. - 1, - 2, 
D. - 1, 
, 2
Mathematics