Solve the problem.A college student earned $5400 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at  and the rest at  If the student received a total of $400 in interest at the end of the year, how much was invested at 

A. $2700
B. $2200
C. $771
D. $3200


Answer: B

Mathematics

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Write a formula for the general term (the nth term) of the geometric sequence.2, -4, 8, -16, 32, . . .

A. an = 2(-2)n B. an = 2(-2n) C. an = a1 - 2n D. an = 2(-2)n - 1

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Draw a sketch to represent the vector. Refer to the vectors pictured here.  -b

A.

B.

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Let f(x, y) = x3y + ex + 3y. Compute (1, 0).

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Mathematics