Identify the vertex of the parabola.P(x) = 3x2 - 30x + 77
A. (-5, 2)
B. (-5, -2)
C. (-2, -5)
D. (5, 2)
Answer: D
Mathematics
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Factor completely.512c3 + 125
A. (8c + 5)(64c2 + 25) B. (8c - 5)(64c2 + 40c + 25) C. (512c + 5)(c2 - 40c + 25) D. (8c + 5)(64c2 - 40c + 25)
Mathematics
For the given polar equation, write an equivalent rectangular equation. 7r cos ? + 8r sin ? = 1
A. 7x + 8y = x2 + y2
B. 7y + 8x = 1
C. 
+ 
= 1
D. 7x + 8y = 1
Mathematics
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
At what time was the temperature 72°?
A. 6 p.m. B. 9 a.m. and 10 a.m. C. 9 a.m. D. 10 a.m.
Mathematics
Solve the literal equation for the specified variable.P = 2L + 2W for L
A. L = P - W
B. L = 
C. L = d - 2W
D. L = 
Mathematics