Given two concentric circles (circles with the same center) with central angle ? = 45°, r1 = 3.8 m, r2 = 7.6 m, find the shaded area As in the illustration below.
As __________ m2
Fill in the blank(s) with the appropriate word(s).
17
Mathematics
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Ln x = 4.2. Find x.
What will be an ideal response?
Mathematics
Find the domain of the function. Put your answer in set-builder notation.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Find all solutions of the equation.sin x = -1
A. 2n?
B. x = ? + 2n?
C. x = 
+ 2n?
D. x = 
+ 2n?
Mathematics
Solve the problem. Round your answer to the nearest tenth, if necessary.Working together, Rick and Juanita can complete a job in 6 hr. It would take Rick 9 hr longer than Juanita to do the job alone. How long would it take Juanita alone?
A. 6 hr B. 9 hr C. 3 hr D. 15 hr
Mathematics