Solve.A plane makes a 240-mile trip against a head wind in 1 hour and 30 minutes and returns, with a tail wind of the same speed, in 1 hour. What is the speed of the wind?
A. 80 mph
B. 200 mph
C. 160 mph
D. 40 mph
Answer: D
Mathematics
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Solve the equation.
= 4
A. ?
B. 
C. 
D. 
Mathematics
State the multiplication property illustrated by the given equation.-8 × (-14) = -14 × (-8)
A. Zero B. Identity C. Distributive D. Commutative
Mathematics
Rewrite the expression as a single trigonometric function using a double-angle identity.cos24? - sin24?
A. 2 sin 4?
B. cos 8?
C. 
sin 16?
D. cos 4?
Mathematics
Use factoring to find the zeros of the quadratic function. List the x-intercepts of the graph of the function.h(x) = 4x2 - 8x
A. x = 4, x = 2 B. x = 0 C. x = 2 D. x = 0, x = 2
Mathematics