Identify the polygon.
A. heptagon
B. pentagon
C. quadrilateral
D. hexagon
Answer: B
Mathematics
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Write a general term an for the sequence. Assume that n begins with 1.
, 
, 
, 
, . . .
A. an = 
n
B. an = 
n
C. an = 
(n - 1)
D. an = 
n-1
Mathematics
Solve the problem.A chemical solution contains 4% sodium. How much sodium is in 
of solution?
A. 1.8 mL B. 11.25 mL C. 0.18 mL D. 112.5 mL
Mathematics
Let x be a continuous random variable over [a, b] with probability density function f. Then the median of the x-values is that number m for which 
.Find the median.f(x) = 
x2, [-2, -2]
A. 1
B. 
C. 0
D. 
Mathematics
Multiply.7(-60)(-8)(-50)
A. -16,800 B. -1,680,000 C. 168,000 D. -168,000
Mathematics