For the concentric circles, the outer circle radius is R = 6 in while that of the inner circle is r = 3 in. Find the exact area of the annulus (ring) that is determined by the two circles.
What will be an ideal response?
27
Mathematics
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Find the series' radius of convergence.
A. ?, for all x B. 1 C. 0 D. 2
Mathematics
Solve the problem.Jim drove 117 miles in 3 hours. If he can keep the same pace, how long will it take him to drive 
A. 351 hr B. 60 hr C. 40 hr D. 30 hr
Mathematics
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Mathematics
Write the ratio or rate in simplest form.450 yards to 50 yards
A. 
B. 
C. 
D. 
Mathematics