Determine whether the sequence is arithmetic.2, -3, -8, -13, -18, ...

A. Arithmetic
B. Not arithmetic

Answer: A

Mathematics

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Find the equation of the set of points P satisfying the given condition.The difference of the distances of P from (± , 0) is 2.

A.  - y2 = 1
B. x2 -  = 1
C.   - x2 = 1
D. y2 -  = 1

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Mathematics

Solve the equation for all values 0 ? x ? 2?.tan 2x - tan x = 0

A. x = , 
B. x = 0, ?, 2?
C. x = 0
D. x = , , , , , , 

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Mathematics

Solve the problem. Express the answer in scientific notation to two decimals.A computer can do one calculation in 1.4 × 10-7 seconds. How long would it take the computer to do a trillion (1012) calculations?

A. 1.4 × 1012 sec B. 1.4 × 106 sec C. 1.4 × 105 sec D. 1.4 × 10-7 sec

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Mathematics

Solve using Cramer's rule.

A. (-4, 3) B. (3, 4) C. (4, 3) D. (-3, -4)

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Mathematics