Find the mean of the set of data.229, 219, 213, 213, 213, 213, 219, 216, 216, 216, 219, 219Round your answer to one decimal place.
A. 217.1
B. 216.9
C. 218.0
D. 217.2
Answer: A
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Solve the problem.A boat is sailing directly toward a lighthouse that is 90 ft tall. The angular size ? of the lighthouse is the angle formed by the lines from the top and bottom of the lighthouse to the observer on the boat, as shown in the figure. What is the rate of change of the angular size d?/dx when the boat is 300 feet from the lighthouse?
A. -0.00010 rad/ft B. 0.00526 rad/ft C. -0.00917 rad/ft D. -0.00092 rad/ft
This double-bar graph shows the number of male (M) and female (F) athletes at a university over a four-year period. Answer the question.
Which year had the smallest number of female athletes?
A. Year 4 B. Year 1 C. Year 3 D. Year 2
Find an equation for the indicated ellipse.Center (0, 0), horizontal major axis of length 18 and minor axis of length 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Write < or > between the pair of numbers to make the statement true.0 ___ 
A. < B. >