Without solving, determine the character of the solutions of the equation in the complex number system.x2 - 3x - 4 = 0
A. a repeated real solution
B. two unequal real solutions
C. two complex solutions that are conjugates of each other
Answer: B
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Solve the problem.In the first two weeks of school, Jill studied 13 hours and 13 hours, respectively. How many hours must she study during the third week to give her an average of 15 hours per week?
A. 13 hours B. 20.5 hours C. 19 hours D. 15 hours
Find the slope of the line.x = -10
A. 0 B. 1 C. Undefined D. -10
Solve the problem.A rain gutter is made from sheets of aluminum that are 27 inches wide. The edges are turned up to form right angles. Determine the depth of the gutter that will allow a cross-sectional area of 54 square inches. There are two solutions to this problem. Round to the nearest tenth of an inch.
A. 2.4 in. and 11.1 in. B. 2.2 in. and 24.8 in. C. 1.7 in. and 19.9 in. D. 2.9 in. and 13.3 in.
Complete the identity.sin x (sin 2x + sin 4x) = ?
A. cos x (cos 2x + cos 4x)
B. cos x (cos 2x - cos 4x)
C. 
cos x (cos 2x + cos 4x)
D. 
cos x (cos 2x - cos 4x)