Solve the system by substitution. 9x + 10y = 90 x + 9y = 81
A. (1, 8)
B. No solution
C. (-9, 0)
D. (0, 9)
Answer: D
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Find the coordinates of the centroid of the given figure. Each region is covered by a thin, flat plate.The region enclosed by the parabolas y = - x2 + 32 and y = x2
A. (0, 32)
B. 
C. (16, 0)
D. (0, 16)
Determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false. ? If the data consist of two distinct points, then the least-squares line is just the line that passes through the two points.
What will be an ideal response?
Solve the exponential equation and approximate the result, correct to three decimal places.2(x - 2) = 16
A. 4.079 B. 2.000 C. 6.000 D. 10.000
Solve.If three times the smaller of two consecutive integers is added to four times the larger, the result is 95. Find the smaller integer.
A. 14 B. 13 C. 39 D. 12