Solve the equation in the interval [0°, 360°). Give solutions to the nearest tenth, if necessary.2 cos2? + 7 sin ? = 5
A. {30°, 210°}
B. ?
C. {30°, 330°}
D. {90°, 48.6°, 131.4°}
Answer: D
Mathematics
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Sketch the graph of the parametric equations. Then set up the appropriate integral to find the length of the curve and use a computer to evaluate it.x = sin 3t, y = cos t, 0 ? t ? 2?
A. L = 10.19
B. L = 13.07
C. L = 2?
D. L = 13.07
Mathematics
Evaluate the expression.3-2
A. -9
B. 9
C. 
D. 
Mathematics
Solve and graph the solution set on a number line.|x + 7| < 5
A. ?
B. (-?, -12) ? (-2, ?)
C. [-12, -2]
D. (-12, -2)
Mathematics
Select the formula that best models the data in the table. 
A. y = 3x B. y = x3 C. y = 2x + 3 D. y = x2
Mathematics