Solve the following quadratic equation using the quadratic formula. Find the exact answer. If there are no real solutions, so state.4x2 - x + 4 = 0
A. x = 
B. x = 1 ± 3
C. x = 
D. no real solution
Answer: D
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Use scientific notation to solve the problem.The earth is approximately 92,900,000 miles from the sun. 
x 103 m, what is the distance to the sun in meters?
A. 1.50 x 1011 m B. 5.7 x 1010 m C. 1.50 x 1010 m D. 5.7 x 10-10 m
Identify the equation without applying a rotation of axes.3x2 + 3xy + 2y2 + 2x + 2y - 7 = 0
A. parabola B. hyperbola C. ellipse D. circle
Use a calculator with a 
key or a 
key to solve the problem.The exponential function 
describes the price P, in dollars, of a movie ticket in a local cinema in year x, assuming a yearly inflation rate of 
What was the original ticket price (year 0)? What will the price be in year 9?
What will be an ideal response?
Use Bayes' rule to find the indicated probability.Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defective items, and store B has 66% of the sales, 1% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives a defective item of this product as a gift. What is the probability it came from store B?
A. 0.275 B. 0.22 C. 0.5667 D. 0.7083