Find the distance between the points on a number line.15, -6
A. -21
B. 9
C. 21
D. -9
Answer: C
Mathematics
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Find the vertex of the parabola.y = 9x2 - 54x + 83
A. (3, 0) B. (3, 2) C. (2, 3) D. (2, 0)
Mathematics
Match the equation with the surface it defines.
+ 
= 
A. Figure 3 B. Figure 4 C. Figure 2 D. Figure 1
Mathematics
Translate using numbers and symbols.Nine added to a number
A. 9x B. 9 - x C. x + 9 D. x × 9
Mathematics
Solve the problem. Write ratios in lowest terms.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater. Find the ratio of pollutant E to pollutant C.
A. 
B. 
C. 
D. 
Mathematics