Solve.The sum of a number and its square is 42. Find the number.
A. -6 or 7
B. -6 or -7
C. 6 or -7
D. 6 or 7
Answer: C
Mathematics
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Graph the sinusoidal function using key points.y = -3 cos(?x)
A. 
B. 
C. 
D. 
Mathematics
Plot a scatter diagram.Draw a scatter diagram of the given data. Find the equation of the line containing the points (2, 1.2) and 
Graph the line on the scatter diagram.
A. y = 0.47x + 0.34
B. y = 0.37x + 0.47
C. y = 0.43x + 0.34
D. y = 0.44x + 0.37
Mathematics
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(3x - 5)3
A. 9x2 - 30x + 25 B. 27x3 - 135x2 + 135x - 125 C. 27x3 + 135x2 + 225x + 125 D. 27x3 - 135x2 + 225x - 125
Mathematics
Identify the pair of lines as appearing to be parallel, perpendicular, or intersecting.
A. Parallel B. Intersecting C. Perpendicular
Mathematics