Solve.If y varies directly as the square of x, and y = 720 when x = 6, find y when x = 2.
A. 6480
B. 2160
C. 80
D. 240
Answer: C
Mathematics
You might also like to view...
Convert 31,680 feet to miles.
A. 6.3 B. 7.2 C. 12 D. 6 E. 9.6
Mathematics
Solve.A bridge constructed over a river has a supporting arch in the shape of a parabola. The length of the road over the parabolic arch is 300 feet and the maximum height of the arch is 126 feet. Write the equation of the arch.
A. y = x2 + 126
B. y = 
x2 + 126
C. y = -x2 + 126
D. y = - 
x2 + 126
Mathematics
Convert.0.651 dekameter = _____ centimeters
A. 6.51 B. 65.1 C. 651 D. 6510
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics