Write the standard form of the equation of the circle with radius r and center (h, k).r = 2; (h, k) = (6, 8)
A. (x - 6)2 + (y - 8)2 = 4
B. (x + 6)2 + (y + 8)2 = 4
C. (x + 6)2 + (y + 8)2 = 2
D. (x - 6)2 + (y - 8)2 = 2
Answer: A
Mathematics
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A.
B. -
C.
D. -
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Solve.Seven times some number, added to 7, amounts to -5 added to the product of 4 and the number. Find the number.
A. -4 B. 4 C. 12 D. -12
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Complete the square. Then write the trinomial square in factored form.x2 + 9x
A. x2 + 9x; 2
B. x2 + 9x + 81; 2
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D. x2 + 9x + ;
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