Solve the problem.The following data set gives the average home value, in dollars, for a city at 5-year intervals.In which 5-year period did average home value change the most?

A. 1985-1990
B. 2000-2005
C. 1990-1995
D. 1995-2000


Answer: D

Mathematics

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Rotate the coordinate axes to change the given equation into an equation which has no cross product (xy) term. Identify the graph of the equation as a hyperbola, ellipse, parabola, a straight line, or parallel lines.3x2 + 2xy + y2  - 9x + 5y - 18 = 0

A. 4u2 - v2 - 11u + 7v - 18 = 0; Hyperbola
B. 4u2 - 11u - 18 = 0; Parallel lines
C. 4u2 - 11u + 7v - 18 = 0; Parabola
D. 4u2 + v2 - 11u + 7v - 18 = 0; Ellipse

Mathematics

Solve.A wastewater treatment operator uses the formula A = 8.34FC to determine the amount A of chlorine in pounds to add to a basin. The flow F through the basin is in millions of gallons per day, and the desired concentration C of chlorine is in parts per million. If 2200 pounds of chlorine is added to a basin with a flow rate of 10.4 million gallons per day, what would be the resulting concentration?

A. 25.36 ppm B. 19.08 ppm C. 211.54 ppm D. 117.39 ppm

Mathematics

Find the area of the square. 

A. 392 sq cm B. 196 sq cm C. 56 sq cm D. 191 sq cm

Mathematics

Solve the problem with three unknowns.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. B requires 1 black, 2 white, and 1 red. C requires 2 black, 1 white, and 2 red. They used 100 black, 110 white and 80 red wires. How many of each cable were made?

A. 20 cable A 20 cable B 10 cable C B. 20 cable A 20 cable B 83 cable C C. 20 cable A 93 cable B 10 cable C D. 10 cable A 20 cable B 20 cable C

Mathematics