Find the standard form of the equation of a circle that satisfies the given conditions.Diameter with endpoints (-4, 3) and (-4, -3)
A. (x + 4)2 + y2 = 3
B. (x + 4)2 + y2 = 9
C. x2 + (y - 3)2 = 16
D. (x - 3)2 + y2 = 16
Answer: B
Mathematics
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A. sin x B. cos x + sin x C. -sin x D. cos x - sin x
Mathematics
Perform the operation.Multiply 639 by 125
A. 79,865 B. 79,885 C. 79,875 D. 79,975
Mathematics
Solve the problem.Assume that the profit generated by a product is given by 
where x is the number of units sold. If the profit keeps changing at a rate of 
per month, then how fast are the sales changing when the number of units sold is 600? (Round your answer to the nearest dollar per month.)
A. $29/month B. $68,586/month C. $17,146/month D. $8573/month
Mathematics
Multiply vertically.(2x + 3)(6x + 5)
A. 8x2 + 8 B. 12x2 - 8x + 15 C. 12x2 + 15 D. 12x2 + 28x + 15
Mathematics