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Phoenix [80]
3 years ago
14

5 − 10x + 15y − 20xy

Mathematics
2 answers:
zvonat [6]3 years ago
6 0
The correct answer is C
KATRIN_1 [288]3 years ago
5 0

.answer:

c

step-by-step explanation:

the coefficient of a term is the numeric value including the sign in front of the variable/ s

the fourth term in the expression is - 20xy

the coefficient of this term is - 20 → C

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Determine the value of c that makes the function f(x y) = c/x-y/ a joint discrete probability density function for x=2,0,2 and y
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Given:  The given function is

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\int\limits^3_{-2} \,\int\limits^2_0 {f(x,y)} \, dx dy\\=\int\limits^3_{-2} \,\int\limits^2_0 {c(x-y)} \, dx dy\\\\=\int\limits^3_{-2} \,[2c-2cy]dy\\=10c-5c\\=5c\\The integral should be1.\\So, 5c=1\\

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Therefore, the required value of c is 1/5.

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