In a survey of 60 people it is found that 25 like to drink milk, 26 coffee and 26 tea, 11 like milk and coffee, 8 like coffee and tea and 8 like none of the three. Using Venn diagram i. Find the number of people who like all the three drinks ii. Find the number of people who like exactly one of the three drinks​

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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find the magnitude of the trig term  

csc

(

x

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−

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by taking the absolute value of the coefficient.

1

find the lower bound of the range.

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y

=

−

2

find the upper bound of the range.

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y

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the range is  

y

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or  

y

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(

−

∞

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−

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∪

[

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{

y

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step-by-step explanation: