Solve the problem.What is the probability of a dart landing in the shaded region?(Assume that the x's represent equal measures and that the dart is equally likely to land in any region on the board.)
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Replace the polar equation with an equivalent Cartesian equation.r2 = 30r cos ? - 6r sin ? - 9
A. (x - 15)2 + (y + 3)2 = 225 B. (x - 15)2 + (y + 3)2 = 9 C. 30x - 6y = 9 D. (x + 30)2 + (y - 6)2 = 9
Mathematics
Evaluate the integral.
3x dx
A. - x cot 3x + ln 
+ C
B. 
x cot 3x - 
ln 
+ C
C. - 3x cot 3x + 9 ln 
+ C
D. - 
x cot 3x + 
ln 
+ C
Mathematics
Convert.8.53 meters = _____ hectometer
A. 0.853 B. 0.0853 C. 85.3 D. 853
Mathematics
Solve the problem.A photograph measuring 
by 
is put in a frame measuring 
by 
What is the area of the border around the photo?
A. 8 in.2
B. 9 in.2
C. 8
in.2
D. 7
in.2
Mathematics