Solve.Find the exact circumference of the circle. Then use the approximation 3.14 for ? and approximate the circumference.
A. 24? mi, 75.36 mi
B. 24? mi, 75.6 mi
C. 144? mi, 452.16 mi
D. 12? mi, 37.68 mi
Answer: A
Mathematics
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Find the particular solution to the given differential equation that satisfies the given conditions.D2y - 9 Dy + 14y = 0; Dy = 0 and y = 2 when x = 0
A. y = - 
e7x + 
e2x
B. y = - 
e7x - 
e2x
C. y = 
e7x + 
e2x
D. y = 
e7x - 
e2x
Mathematics
Solve the radical equation. Check all proposed solutions.x - 
= 4
A. x = -1 B. x = 9 C. x = 1, 2 D. x = 2, 9
Mathematics
Solve the problem.Midtown Antiques has found that sales have decreased 4% from last year. Sales this year are $114,631. Find the amount of last year's sales. Round your answer to the nearest dollar.
A. $119,307 B. $120,407 C. $119,407 D. $119,397
Mathematics
Evaluate using Table 1 or CAS.
Mathematics