Solve the problem.For a circle of radius 4 feet, find the arc length s subtended by a central angle of 30°. Round to the nearest hundredth.
A. 6.28 ft
B. 376.99 ft
C. 2.09 ft
D. 4.19 ft
Answer: C
Mathematics
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Solve the system. x - y + 3z = 11-2x + 2y - 6z = 4 x + 5y + z = -1
A. (4, 0, -1) B. (4, -1, 0) C. (0, -1, 4) D. No solution
Mathematics
Find a simplified value for x by inspection. Do not use a calculator.
?
?
A. 243 B. 81 C. 7 D. 4 E. 5
Mathematics
Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = 
, g(x) = x
A. Yes, no B. Yes, yes C. No, no D. No, yes
Mathematics
Solve the problem.The formula C = 28d + 30 describes the total cost of renting a truck, where C is the total cost and d is the number of days the truck is rented. How many days can the truck be rented for $338?
A. 12 days B. 21 days C. 11 days D. 9 days
Mathematics