Find the product.(n + 2)2

A. 4n2 + 4n + 4
B. n2 + 4n + 4
C. n + 4
D. n2 + 4


Answer: B

Mathematics

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Solve the problem.Roberto invested some money at 8%, and then invested $3000 more than twice this amount at 10%. His total annual income from the two investments was $3660. How much was invested at 10%?

A. $2700 B. $24,000 C. $9000 D. $27,000

Mathematics

Solve the problem.Find a matrix A and a column matrix B that describe the following tables involving credits and tuition costs. Find the matrix product AB and interpret the significance of the entries of this product. 

A.
AB = 
Tuition for Student 2 is $1101 and tuition for Student 1 is $822.
B.
AB = 
Tuition for Student 2 is $1095 and tuition for Student 1 is $809.
C.
AB = 
Tuition for Student 1 is $1095 and tuition for Student 2 is $809.
D.
AB = 
Tuition for Student 1 is $1101 and tuition for Student 2 is $822.

Mathematics

Work the chain multiplication.9 ? 2 ? 0

A. 1 B. 18 C. 11 D. 0

Mathematics

Plot the ordered pair in the Cartesian plane, and state in which quadrant or on which axis it lies.(0, -5)

A. y-axis

B. Quadrant II

C. x-axis

D. y-axis

Mathematics