Solve by completing the square to obtain exact solutions.x2 + 10x + 14 = 0
A. 5 + 
B. -10 ± 
C. 5 ± 
,
D. -5 ± 
Answer: D
Mathematics
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What term of the arithmetic sequence is the given number?3.44, 3.84, 4.24, . . . ;14.64
A. 26 B. 28 C. 30 D. 29
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Find all solutions of the equation in the interval [0, 2?).cos 2x = 
A. 
B. 
C. ?
D. 
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Use an identity to find the value of the expression. Do not use a calculator.cos 46° sec 46°
A. cos2 46° B. 1 C. 46 D. 0
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Solve.The formula D = 16t2 is used to approximate the distance in feet an object falls in t seconds. A package is dropped from an airplane that is 3600 feet above the ground. How many seconds elapse before it hits the ground?
A. 15 seconds B. 225 seconds C. 30 seconds D. 57,600 seconds
Mathematics