Solve.Find the area of a rectangle with a length of 19 inches and a width of 20 inches.
A. 760 in.2
B. 190 in.2
C. 380 in.2
D. 39 in.2
Answer: C
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The following table shows the height, in inches, of a boy who is 
years old.
59131721
37.2649.6861.3268.4171.62?
Use the averaging to estimate the boy's height at age 7.
?
A. 62.10 inches
B. 43.47 inches
C. 41.21 inches
D. None of the above
Determine whether the events are independent.A bag contains 14 red and 7 green marbles. Two marbles are drawn without replacement. Are the events "first marble is red" and "second marble is green" independent events?
A. Yes B. No
Solve the problem.Let f(x,y) = ln (x2 + y2). Which one of the following curves is a simple closed path in the domain of the function f?
A. The unit circle (x - 5)2 + y2 = 1
B. The ellipse 
+ 
= 1
C. The rectangle with vertices at (-3, 2), (3, 2), (3, -2), and (-3, -2)
D. The unit circle x2 + y2 = 1
Use the vertical line test to determine whether the graph represents a function.
A. not a function B. function