3.
The following table gives production
yield per hectare of wheat of 100 farms
of a village.
Production
50-55
55-60
yeild
60-65
65-70
70-75
75-80
X Х
(in kg/h)
Number of
2.
8
12
24
38
16
farms
Change the distribution to a more than
type distribution, and draw its ogive.with graph
Answers
Answer:
ANSWER EXPLANATION: There are two ways to solve this question. The faster way is to multiply each side of the given equation by ax−2 (so you can get rid of the fraction). When you multiply each side by ax−2, you should have:
24x2+25x−47=(−8x−3)(ax−2)−53
You should then multiply (−8x−3) and (ax−2) using FOIL.
24x2+25x−47=−8ax2−3ax+16x+6−53
Then, reduce on the right side of the equation
what
24x2+25x−47=−8ax2−3ax+16x−47
Since the coefficients of the x2-term have to be equal on both sides of the equation, −8a=24, or a=−3.
The other option which is longer and more tedious is to attempt to plug in all of the answer choices for a and see which answer choice makes both sides of the equation equal. Again, this is the longer option, and
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