Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.a + 1 + 
+ . . . + 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Multiply and simplify.
? 
A. - 
B. 
C. 
D. -12
Mathematics
Graph the function.y = 
- 3
A. 
B. 
C. 
D. 
Mathematics
Find all real solutions to the system of equations using the addition method. x2 - 2y2 = 23x2 + 2y2 = 14
A. (2, 1), (-2, -1) B. (-1, 2), (1, -2) C. (2, 1), (2, -1), (-2, 1), (-2, -1) D. (1, 2), (-1, 2), (1, -2), (-1, -2)
Mathematics
Perform the indicated operation.6 tons 153 lb - 3 tons 364 lb
A. 2 tons 1789 lb B. 3 tons 1789 lb C. 3 tons 211 lb D. 9 tons 517 lb
Mathematics