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melisa1 [442]
3 years ago
6

If the mean of the following distribution is 91 and sum of frequencies is 150 find x and y

Mathematics
1 answer:
nydimaria [60]3 years ago
7 0

Answer:

Step-by-step explanation:

Mean = ∑x/ N

91 = ∑x / 150

∑x = 150 * 91 = 13650

x= 6825 and y = 6825

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PLEASE SUPER URGENT!! 14 PTS PLEASE
Zepler [3.9K]

Answer: h(x) = -1200x^2 + 1950x + 4950

=======================================

Work Shown:

f(x) = revenue from the north

f(x) = -750x^2 + 1500x + 2250

g(x) = revenue from the south

g(x) = -450x^2 + 450x + 2700

h(x) = total revenue, ie add the two revenues

h(x) = f(x) + g(x)

h(x) = (-750x^2+1500x+2250)+(-450x^2+450x+2700)

h(x) = -1200x^2 + 1950x + 4950

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2 years ago
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I hope this helps and God bless!

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2 years ago
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If a were 1, The answer would be:

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