Subtract.81
A. 130
B. 30
C. 42
D. 32
Answer: D
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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.5x2 + 6xy + 5y2 = 15
A. 8u2 + 2v - 15 = 0; Parabola B. 8u2 - 2v2 - 15 = 0; Hyperbola C. 8u2 + 2v2 - 15 = 0; Ellipse D. 8u2 + 2u - 15 = 0; Parallel lines
The stack plot below shows the value of each of Danny's investments. The stack plot contains three regions. The uppermost unshaded region represents the value of Danny's investment in individual stocks. The center shaded region represents the value of Danny's investment in mutual funds and the bottom region in black represents the value of Danny's investment in a CD. The thickness of a region at a particular time tells you its value at that time. 
Use the graph to answer the question.In which year was the total value of Danny's investments the least?
A. year 0 B. year 3 C. year 1 D. year 8
Solve the equation by the zero-factor property.(9x + 11)(4x + 15) = 0
A. 2, 11
B. 
, 
C. 
, - 
D. - 
, - 
Find the quotient of the fractions. Write the answer as a mixed number when appropriate.26
÷ 30
A. 
B. 1
C. 800
D. 