Find an expression for the nth term of the arithmetic sequence.2, -1, -4, -7, -10, . . .
A. an = -8 - 3n
B. an = -3n - 5
C. an = 3n - 5
D. an = -3n + 5
Answer: D
Mathematics
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Solve the problem.On our moon, the acceleration of gravity is 1.6 m/sec2. If a rock is dropped into a crevasse, how fast will it be going just before it hits bottom 45 seconds later?
A. 3240 m/sec B. 72 m/sec C. -36 m/sec D. -72 m/sec
Mathematics
Solve the equation.33x2 + 15x = 0
A. 
B. 
C. 
D. {0}
Mathematics
Give the first five terms of the sequence for which an is given.an = 2(2n - 1), n = 1, 2, 3...
A. 2, 4, 6, 8, 10 B. 2, 6, 10, 14, 18 C. 1, 3, 5, 7, 9 D. -2, 2, 6, 10, 14
Mathematics
Find the value of the variable that satisfies the equation.2x + 6 = 14
A. x = 4 B. x = 10 C. x = 6 D. x = 1
Mathematics