F(x) = 2x^2 – 5x; find f(3)
2 answers:
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Answer:
Option C is correct.
None of the options is true.
Step-by-step explanation:
The histograms for the question is missing, so, it was obtained online and is attached to this solution of the question.
To check which statements are true, we first find the average using the midpoint technique.
The midpoint for each of the ranges is presented below
110 to 120 = 115
120 to 130 = 125
130 to 140 = 135
140 to 150 = 145
150 to 160 = 155
Sum of weights for Alabama linemen using the midpoint technique
= (125×4) + (135×8) + (145×4) + (155×2)
= 2470 kg
Average = (2470) ÷ (4+8+4+2)
= 137.22 kg
Sum of weights for Mount Union linemen
= (115×5) + (125×4) + (135×6) + (145×2)
= 2,175 kg
Average = (2,175) ÷ (5+4+6+2)
= 127.94 kg
So, it is evident that the average weight of Mount Union linemen isn't more than that of Alabama linemen.
Statement 2
All of the Alabama linemen have more mass than all of the Mount Union linemen
This is evidently not true because from the histogram, some linemen from Alabama have masses between 120 and 130, 130 and 140 & there are linemen from Mount Union that have masses between 130 and 140 & 140 and 150, so, it isn't right to say that all of the Alabama linemen have more mass than all of the Mount Union linemen.
So, none of the options is correct, option C.
Hope this Helps!!!
