Solve the system by graphing.x + y = -3x - y = -11

A. (4, -7)
B. (-7, 4)
C. No solution
D. Infinite number of solutions


Answer: B

Mathematics

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Find the first five partial sums of the given series and determine whether the series is convergent or divergent. If it is convergent, then find its sum. +  +  +  +  + ...

A. 0.5, 1.16667, 1.91667, 2.71667, 3.55; convergent; 3.55 B. 0.5, 1.16667, 1.91667, 2.71667, 3.55; divergent C. 0.5, 0.6667, 0.75, 0.8, 0.8333; divergent D. 0.5, 0.6667, 0.75, 0.8, 0.8333; convergent; 1

Mathematics

Evaluate the integral by making a substitution and then using a table of integrals.

A.  + ln   + C
B.  +  sin-1   + C
C.  -  ln   + C
D.  -  ln   + C

Mathematics

Multiply and simplify.18 

A.
B. -162
C. -2
D. 2

Mathematics

State the degree of the polynomial: - + .

a. 10 b. 7 c. 4 d. 9

Mathematics