Find the probability of the event.If a single die is rolled, find the probability of the following event.A number less than 2?
A. 
B. 
C. 
D. 
Answer: D
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = 3ti + 
j + 
k; -5? t ? -1
A. 100 B. -150 C. 20 D. -30
Solve the equation.1 - 
= 
A. 2
B. -2
C. - 
D. 
Determine whether the graph illustrated represents a function. Give the domain and range of the relation or function.
A. function domain: {y|-1 ? y ? 1} range: {x|-? ? x ? ?} B. function domain: {x|-? ? x ? ?} range: {y|-1 ? y ? 1} C. not a function domain: {x|-? ? x ? ?} range: {y|-1 ? y ? 1} D. not a function domain: {y|-1 ? y ? 1} range: {x|-? ? x ? ?}
Solve the problem. Round your answer to the nearest tenth.The roof of a building is in the shape of the top half of the hyperbola y2 - x2 = 23, where x and y are in meters. Refer to the figure and determine the distance, w, between the two outside walls. 
a = 8.0 m b = 8.0 m
A. 12.8 m B. 41.0 m C. 9.3 m D. 6.4 m