Use a calculator to find the value of the expression rounded to two decimal places.cos-1 
A. -0.96
B. 2.53
C. 144.74
D. -54.74
Answer: B
Mathematics
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Graph the given equation, indicating vertices, foci, and asymptotes (if it is a hyperbola).4x2 - 9y2 = 36
A. 
B. 
C. 
D. 
Mathematics
Add.34 + 21
A. 54 B. 56 C. 55 D. 13
Mathematics
The figure below is a model of the Ferris wheel. The diameter of the wheel is 189 feet, and one complete revolution takes 14 minutes. Find the linear velocity of a person riding on the wheel. Give your answer in miles per hour and round to the nearest hundredth.
?
?
__________ mph
Fill in the blank(s) with the appropriate word(s).
Mathematics
Add.38 + 14
A. 42 B. 51 C. 52 D. 53
Mathematics