Solve the problem.Inclusive of a 6.3% sales tax, a diamond ring sold for $3,082.70. Find the price of the ring before the tax was added. (Round to the nearest cent, if necessary.)
A. $2,888.49
B. $194.21
C. $3,276.91
D. $2,900
Answer: D
Mathematics
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Find the center and radius of the circle whose graph is shown. Write the standard form of the equation of the circle.
A. r = 
; (h, k) = (-4, 2); (x + 4)2 + (y - 2)2 = 5
B. r = 5; (h, k) = (-4, 2); (x + 4)2 + (y - 2)2 = 25
C. r = 5; (h, k) = (-4, 2); (x - 4)2 + (y + 2)2 = 25
D. r = 
; (h, k) = (-4, 2); (x - 4)2 + (y + 2)2 = 5
Mathematics
Factor by any method.36x2 - 25
A. (6x + 5)2 B. (6x - 5)2 C. (36x + 1)(x - 25) D. (6x + 5)(6x - 5)
Mathematics
Perform the indicated operation and simplify if possible.
? 
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.
?
?
A. 45 B. 5 C. 9 D. 81 E. none of these
Mathematics