Find an for the given geometric sequence.a1 = 4, r = 3
A. an = 3(4)n
B. an = 3(4)n-1
C. an = 4(3)n-1
D. an = 4(3)n
Answer: C
Mathematics
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Solve the absolute value equation.|x + 4| = 9
A. {-5} B. {13, 5} C. {-13, 5} D. ?
Mathematics
Solve.
(4x - 
) - 
= 
A. {
}
B. {
}
C. {
}
D. {
}
Mathematics
Simplify the exponential expression.(-10x3y)(-10x6y2)
A. 100x18y2 B. -20x9y2 C. 100x9y3 D. -100x9y2
Mathematics
Solve the quadratic equation by completing the square.7x2 + 35x = - 42
A. x = 2, x = 3
B. No real solution
C. x = - 
, x = 
D. x = - 3, x = - 2
Mathematics