Solve the equation.
- 
= 7
A. 168
B. 56
C. 48
D. 42
Answer: A
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Solve the problem.A mechanism with two length-adjustable links is depicted below. The adjustable lengths are b and c, the length a is fixed, and the point A can only move horizontally. From the law of sines, 
Sketch the graph of b as a function of A for 
and B = ?/4.
A. 
B. 
C. 
D. 
Determine whether the events are independent.A bag contains 14 red and 7 green marbles. Two marbles are drawn without replacement. Are the events "first marble is red" and "second marble is green" independent events?
A. Yes B. No
Determine whether the relation represents a function. If it is a function, state the domain and range.
A. function domain:{16, 20, 24, 28} range: {4, 5, 6, 7} B. function domain: {4, 5, 6, 7} range: {16, 20, 24, 28} C. not a function
Perform the conversion. Round to the nearest hundredth when necessary.86.5 yd to m
A. 94.29 m B. 283.72 m C. 79.06 m D. 26.38 m