The general term of a sequence is given. Find the indicated partial sum.an = (-1)n(-7n); S4
A. 2401
B. -70
C. -14
D. 70
Answer: C
Mathematics
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Graph the equation.x = y2 + 3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Center City East Parking Garage has a capacity of 253 cars more than Center City West Parking Garage. If the combined capacity for the two garages is 1219 cars, find the capacity for each garage.
A.
| Center City East: | 473 cars |
B.
| Center City East: | 736 cars |
C.
| Center City East: | 746 cars |
D.
| Center City East: | 483 cars |
Mathematics
Solve.10y2 - x2 = 1xy = 3
A.
| No real number solution exists. |
B. (3, 1)
C. (-3, -1)
D. (3, 1), (-3, -1)
Mathematics
Write the system
?
?
as a matrix equation AX = B, where A is the coefficient matrix of the system, X is a column matrix of variables, and B is the column matrix of constants. Multiply each side of the equation on the left by the matrix inverse of A to obtain an equivalent system of equations and solve it.
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics