The distance a baseball travels when a player hits the ball varies directly with the speed with which the player swings the bat.
The graph below shows the distances a baseball travels (in feet) and the speed of the swing (in miles per hour).
Based on the graph, which relationship exists between the speed of the swing and the distance the ball travels?
A. The distance is 0.1 times the swing speed.
B. The distance is 0.2 times the swing speed.
C. The distance is 5 times the swing speed.
D. The distance is 10 times the swing speed.
Based on the graph, which relationship exists between the speed of the swing and the distance the ball travels?
A. The distance is 0.1 times the swing speed.
B. The distance is 0.2 times the swing speed.
C. The distance is 5 times the swing speed.
D. The distance is 10 times the swing speed.
2 answers:
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Answer:
Step-by-step explanation:
we are given that
we want to figure out x
remember that,
In <u>unit</u><u> </u><u>circle</u> x coordinate is considered cos and y coordinate is considered sin
so in order to figure out x we should figure out the value of <u>cos</u> to do we can consider <u>Pythagoras</u><u> trig</u><u> </u><u>indentity</u>
given by
we are given sin=-√7/4 thus
substitute:
simplify square:
move left hand side expression to right hand side and change its sign:
simplify Substraction:
square root both sides:
since in unit circle cos is x and P belongs to Q:IV negative cos isn't applicable
hence,
