Solve the problem.A coin is tossed upward from a balcony 262 ft high with an initial velocity of 16 ft/sec. During what interval of time will the coin be at a height of at least 70 ft? (h = -16t2 + v0t + h0)
A. 0 ? t ? 1
B. 4 ? t ? 8
C. 3 ? t ? 4
D. 0 ? t ? 4
Answer: D
Mathematics
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Write in logarithmic form.72 = 49
A. log2 49 = 7 B. log7 2 = 49 C. log49 7 = 2 D. log7 49 = 2
Mathematics
Use interval notation to represent all values of x satisfying the given conditions.y1 = 6x + 1, y2 = 5x - 1, and y1 ? y2.
A. [0, ?) B. (-?, -2) C. [-2, ?) D. (-?, -2]
Mathematics
Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 22.5°
A. 
B. - 
C. 
D. - 
Mathematics
Determine the equation of the given line, as well as the slope of the line. If the slope is undefined, state this.
A. y = x - 8, m = 1 B. y = -4, m = 0 C. x = -4, m = 0 D. y = x - 4, m: undefined
Mathematics