Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.8 + 2x2 = -2x
A. Two different real-number solutions
B. One real solution
C. Two different imaginary-number solutions
Answer: C
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Use the fundamental identities to simplify the expression.
A. tan2? B. sec2? C. sin ? D. cos3?
Provide an appropriate response.The scores on an examination are normally distributed with ? = 500 and ? = 100. What percentage of the scores are less than 360?
Fill in the blank(s) with the appropriate word(s).
Solve the absolute value inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.|x - 5| + 7 ? 14
A. [-2, 12]
B. (-2, 12)
C. (-?, -2] ? [12, ?)
D. [-2, 14]
Solve the problem using the vector form v = 
[(cos ?)i + (sin ?)j].An airplane flies 10° for 180 mi, and then 315° for 95 mi. How far is the plane from the starting point, and in what direction?
A. 247 mi, 352° B. 275 mi, 2° C. 275 mi, 307° D. 247 mi, 307°