Determine whether the equation defines y as a function of x. y = ± 
A. function
B. not a function
Answer: B
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We give an expression describing the number that corresponds to the natural number n. Use this expression to describe a one-to-one correspondence between the natural numbers and one of its subsets.4n - 1
A.
| 1, | 2, | 3, | 4, 5, ..., | n, ... |
| ? | ? | ? | ? ? ? |
| 2, 6, 10, | 14, 18 ..., | 4n - 1, ... |
B.
| 1, | 2, | 3, | 4, 5, ..., | n, ... |
| ? | ? | ? | ? ? ? |
| 1, 5, 9, 13, 17 ..., | 4n - 1 , ... |
C.
| 1, | 2, | 3, | 4, 5, ..., | n, ... |
| ? | ? | ? | ? ? | ? |
| 3, 7, 11, 15, 19 ..., | 4n, ... |
D.
| 1, | 2, | 3, | 4, 5, ..., | n, ... |
| ? | ? | ? | ? ? ? |
| 3, 7, 11, 15, 19 ..., | 4n - 1, ... |
Find the weighted mean. Round to the nearest tenth.
A. 23.9 B. 27.3 C. 23.3 D. 7.1
In the figure below, a person standing at point A notices that the angle of elevation to the top of the antenna is 
. A second person standing 37.0 feet farther from the antenna than the person at A finds the angle of elevation to the top of the antenna to be 
varid="variable_id_field" variablename="impvar_5be330fdcbf44d03a1582d4a0" />. How far is the person at A from the base of the antenna? Round your answer to the nearest feet.
?
?
?
A. 197 ft
B. 194 ft
C. 192 ft
D. 191 ft
E. 195 ft
Solve the problem.The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. They can produce up to 24 rings each day using up to 60 total man-hours of labor. It takes 3 man-hours to make one VIP ring and 2 man-hours to make one SST ring. How many of each type of ring should be made daily to maximize the company's profit, if the profit on a VIP ring is $30 and on an SST ring is $60?
A. 0 VIP and 24 SST B. 12 VIP and 12 SST C. 16 VIP and 8 SST D. 8 VIP and 16 SST