Solve.5x = -21 + 56
A. 21
B. 7
C. 5
D. -7
Answer: B
Mathematics
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A. (1, -5, -4) B. (1, -4, -5) C. ? D. (-4, -5, 1)
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Stones dropped into a calm pond at points A and B create ripples that propagate in widening circles. In the figure below, points A and B are 38 feet apart, and the radii of the circles differ by 20 feet. The point P (x, y) where the circles intersect moves along a curve. Find the equation of the curve.
?
What will be an ideal response?
Mathematics
Find the product.-4(27)
A. 208 B. -108 C. -88 D. 91
Mathematics
Solve the problem.You withdraw $63 a week from a savings account for 6 weeks. What is the overall change in the account?
A. -$69 B. $378 C. $69 D. -$378
Mathematics