Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.-7a2 - 15ab - 2b2
A. -(a - 2b)(7a + b)
B. -(a + b)(7a + 2b)
C. -(a + 2b)(7a + b)
D. (a - 2b)(7a + b)
Answer: C
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Determine the type of curve from the given information.A radio signal is sent simultaneously from two stations 76 miles apart. If a ship receives the signals 1.02 sec apart, what type of curve describes the possible locations of the ship?
A. Parabola B. Hyperbola C. Ellipse D. None of the above
Determine whether the given number is a solution of the equation.4m + 2 = 20; 4
A. Yes B. No
Solve the problem.The surface area of a cardboard box is 4014 in.2. If the length is 30 in. and the width is 21 in., then what is the height?
A. 29 in. B. 26 in. C. 27 in. D. 28 in.
Find 
. Write your answer in standard polar form with the argument in radians.z1 = 5(cos 200° + i sin 200°), z2 = 4(cos 50° + i sin 50°)
A. 
(cos 150° - i sin 150°)
B. 
(sin 150° + i cos 150°)
C. 
(cos 250° + i sin 250°)
D. 
(cos 150° + i sin 150°)