Solve. Jennifer is building some shelves and requires 18 pieces of wood that are each 2 feet long. What is the total length of wood that Jennifer needs?

A. 36 feet
B. 20 feet
C. 108 feet
D. 48 feet


Answer: D

Mathematics

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Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.a1 = -9, d = 0.6

A. an = 0.6n - 9.6; a20 = 2.4 B. an = -9n + 0.6; a20 = -179.4 C. an = 0.6n - 9; a20 = 3 D. an = -9n + 9.6; a20 = -170.4

Mathematics

Solve the equation. +  = 4

A. {2, -2}
B. {, -2}
C. {0}
D. {-2}

Mathematics

Solve the problem.The difference between two numbers is 6. Twice the smaller number plus twice the larger is 32. What are the numbers?

A. 6 and 12 B. 5 and 11 C. 4 and 10 D. 3 and 9

Mathematics

Evaluate the definite integral. 

A. -4 B. 2 C. -2 D. 4

Mathematics