Find the center and the radius of the circle.(x - 2)2 + (y - 6)2 = 2
A. (-2, -6), r = 2
B. (2, 6), r = 
C. (2, 6), r = 2
D. (-2, -6), r = 
Answer: B
Mathematics
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 4i + 2j + 8k, v = -i - 2j - 2k
A. 6
; 
i + 
k
B. 180; 
i + 
k
C. 180; 
i + 
j + 
k
D. 6
; 
i - 
k
Mathematics
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(x - 16)2
A. 256x2 - 32x + 256 B. x2 - 32x + 256 C. x2 + 256 D. x + 256
Mathematics
Solve the equation.
+ 9 = 15
A. ?
B. 
C. 
D. {84}
Mathematics
Simplify the expression.(1 + cot ?)(1 - cot ?) - csc2 ?
A. 2 B. 2 cot2 ? C. 0 D. -2 cot2 ?
Mathematics