Solve the system graphically. If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. Round to the nearest hundredth if necessary. y = 16 - 5x 5x + y = 31
A. (10, 6)
B. {(x,y) | 5x + y = 16}
C. No solution
D. (14, -54)
Answer: C
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Solve.While traveling in a car, the centrifugal force a passenger experiences as the car drives in a circle varies jointly as the mass of the passenger and the square of the speed of the car. If the a passenger experiences a force of 64.8 newtons when the car is moving at a speed of 30 kilometers per hour and the passenger has a mass of 80 kilograms, find the force a passenger experiences when the car is moving at 30 kilometers per hour and the passenger has a mass of 50 kilograms.
A. 36 newtons B. 45 newtons C. 54 newtons D. 40.5 newtons
Clear fractions and solve.
+ 
= 0
A. 
B. 6, -1
C. 3
D. - 
, 1
Express each of the following statements in symbols, using <, >, ?, or ?.a is positive.
A. a ? 0 B. a < 0 C. a ? 0 D. a > 0
Find the indicated probability.If you pick a card at random from a well shuffled deck, what is the probability that you get a face card or a spade?
A. 
B. 
C. 
D. 