Specify the center and radius of the circle.(x - 3)2 + (y + 9)2 = 25
A. center: (-9, 3); radius: 5
B. center: (9, -3); radius: 25
C. center: (-3, 9); radius: 25
D. center: (3, -9); radius: 5
Answer: D
Mathematics
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,
x in 
A. cos x = - 
, tan x = - 
B. cos x = 
, tan x = - 
C. cos x = -2, tan x = 
D. cos x = 
, tan x = 
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Find the length of the curve.The spiral r = 7?, 0 ? ? ? ?
A. 
(?
+ ln (? + 
))
B. 
C. 7
D. 
((?2 + 1)3/2 - 4)
Mathematics
Perform the indicated operation. Write the answer in lowest terms.6
+ 11
A. 16
B. 6
C. 17
D. 18
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Simplify the polynomial by combining like terms.10y3 + 3 - 4m2n2 + 13 - 17n2m2
A. 10y3 - 21m2n2 - 10 B. 10y3 + 68m2n2 + 16 C. 10y3 - 21m2n2 + 16 D. cannot be simplified
Mathematics