Solve by using the percent proportion 
= 
.Find 0.8% of 3500.
A. 
= 
; a = 280
B. 
= 
; b = 3
C. 
= 
; a = 28
D. 
= 
; p = 2800
Answer: C
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Find the area of the shaded region.
A. 10 B. 12.5 C. 7.5 D. 5
Use Bayes' rule to find the indicated probability.Quality Motors has three plants. Plant 1 produces 35% of the car output, plant 2 produces 20% and plant 3 produces the remaining 45%. One percent of the output of plant 1 is defective, 1.8% of the output of plant 2 is defective and 2% of the output of plant 3 is defective. The annual total production of Quality Motors is 1,000,000 cars. A car chosen at random from the annual output and is found defection. What is the probability that it came from plant 2?
A. 0.35 B. 0.559 C. 0.224 D. 0.217
The shape of the window shown in below is a combination of a rectangle and a semicircle. Find the equation of the circle of which the semicircle is a part.
?
?
; 
?
A. ?
B. ?
C. 
D. ?
E. none of these
Solve the problem.A semicircular driveway has a diameter of 60 ft. How long is the driveway?(Use 3.14 for ? .)
A. 92.2 ft B. 600 ft C. 94.2 ft D. 188.4 ft