Solve the equation.
- 4 = -1
A. -5, 5
B. -3
C. 3, -3
D. 3
Answer: C
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Provide an appropriate response.A student tried to solve the equation 9x = 40 by dividing each side by 40. Why is this not the correct procedure for solving this equation?
What will be an ideal response?
Identify the base and the exponent for the exponential expression.76
A. Base: 7, exponent: 6 B. Base: 6, exponent: 7 C. Base: 6, exponent: 42 D. Base: 42, exponent: 6
Solve the equation using the quadratic formula.(2x - 1)(x + 1) = 3
A. 
B. 
C. 
D. 
Solve.A plane flying with a tailwind flew at a speed of 420 mph, relative to the ground. When flying against the tailwind, it flew at a speed of 310 mph. Graph the system to find the speed of the plane in calm air and the speed of the tailwind.
A. Speed of plane: 375 mph Speed of tailwind: 45 mph B. Speed of plane: 45 mph Speed of tailwind: 375 mph C. Speed of plane: 55 mph Speed of tailwind: 365 mph D. Speed of plane: 365 mph Speed of tailwind: 55 mph