Which of the following graphs is the graph of the function?
 multiple choice.png)
a. Graph 2
Mathematics
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Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos-1
A. ?
B. 
C. 1
D. No limit
Mathematics
Construct a truth table for the statement.(p ? ~q) ? r
A. 
| T | T | T | F | F | F |
T F T T T T
T F F T T F
F T T F F F
F T F F F F
F F T T F F
F F F T F F
B.
| T | T | T | F | T | T |
T F T T F F
T F F T F F
F T T F T T
F T F F T F
F F T T T T
F F F T T F
C.
| T | T | T | F | F | F |
T F T T F F
T F F T F F
F T T F F F
F T F F F T
F F T T T T
F F F T T T
D.
| T | T | T | F | F | T |
T F T T T T
T F F T T F
F T T F F F
F T F F F T
F F T T F T
F F F T F T
Mathematics
Find an equation of variation in which the following are true.y varies jointly as x and z, and y = 216 when x = 8 and z = 9
A. y = 27x
B. y = 
C. y = 5xz
D. y = 3xz
Mathematics
Provide an appropriate response.In a statistics class, the following test scores were recorded for a student: 88, 83, 81, 77, 83, 69, 79. Find the mean, median, and mode.
A. mean: 80, median: 77, mode: 88 B. mean: 81, median: 77, mode: 83 C. mean: 80, median: 81, mode: 83 D. mean: 81, median: 80, mode: 88
Mathematics