Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that y is inversely proportional to x. When x = 24, then y = 
.
A. k = 72; y = 72x
B. k = 8; y = 
C. k = 8; y = 
D. k = 
; y = 
Answer: B
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Find the length and direction (when defined) of u × v.u = 4i + 2j + 8k, v = -i - 2j - 2k
A. 180; 
i + 
j + 
k
B. 180; 
i + 
k
C. 6
; 
i + 
k
D. 6
; 
i - 
k
State how many peaks you would expect for the distribution described.Weights of the first graders at a school
A. One B. None C. Two D. Three
Find the indicated probability. Round your answer to 6 decimal places when necessary.When a pair of dice is rolled there are 36 different possible outcomes: 1-1, 1-2, ... 6-6. If a pair of dice is rolled 4 times, what is the probability of getting a sum of 5 every time?
A. 
B. 
C. 
D. 
Graph the solution of the rational inequalities on a number line and write the solution in interval notation;.
? 0
A. 
B. 
? [4, ?)
C. 
D. 
? (4, ?)