Rewrite the series using summation notation. Use 1 as the lower limit of summation.2 + 4 + 6 + . . . + 18
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the coordinates of the points shown on the graph.
A. A: (1, 24), B: (7, -6) B. A: (4, 1), B: (-6, 7) C. A: (4, 7), B: (1, 7) D. A: (4, 1), B: (7, -6)
Mathematics
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.I = prt for t = 3, p = 250, r = 0.01
A. I = 0.1875 B. I = 7.5 C. I = 18.75 D. I = 0.3
Mathematics
Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula 
, as needed.Find the pH if [H3O+] = 3.5 × 10-7.
A. 6.7 B. 7.5 C. 6.5 D. -7.5
Mathematics
Identify the number as prime, composite, or neither.418
A. Prime B. Composite C. Neither
Mathematics