Solve the problem.Find the area A and circumference C of a circle of diameter 22 in.. Use 3.14 for ?. Round the result to the nearest tenth.
A. A = 138.2 in.2; C = 34.5 in.
B. A = 379.9 in.2; C = 69.1 in.
C. A = 69.1 in.2; C = 69.1 in.
D. A = 1519.8 in.2; C = 34.5 in.
Answer: B
Mathematics
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Graph the equation.y = 1
A. 
B. 
C. 
D. 
Mathematics
Find zw or 
as specified. Leave your answer in polar form.z = 1 - iw = 1 - 
iFind 
.
A. 
(cos 75° + i sin 75°)
B. 
(cos 75° + i sin 75°)
C. 
(cos 15° + i sin 15°)
D. 
(cos 15° + i sin 15°)
Mathematics
Find the equation of the parabola whose vertex and focus are shown.
A. (y - 4)2 = -20(x - 3) B. (x - 4)2 = -20(y - 3) C. (y - 4)2 = 20(x - 3) D. (x - 4)2 = 20(y - 3)
Mathematics
Find the probability.A bag contains 6 red marbles, 2 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue?
A. 
B. 7
C. 
D. 
Mathematics