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e-lub [12.9K]
2 years ago
14

In a survey of a community, it was found that 85% of the people like winter season and 65% like summer season. If none of them d

id not like both seasons
i) what percent like both the seasons
​
Mathematics
1 answer:
KengaRu [80]2 years ago
6 0

Answer:

50%

Step-by-step explanation:

Let :

Winter = W

Summer = S

P(W) = 0.85

P(S) = 0.65

Recall:

P(W u S) = p(W) + p(S) - p(W n S)

Since, none of them did not like both seasons, P(W u S) = 1

Hence,

1 = 0.85 + 0.65 - p(both)

p(both) = 0.85 + 0.65 - 1

p(both) = 1.50 - 1

p(both) = 0.5

Hence percentage who like both = 0.5 * 100% = 50%

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100 POINTS!!! VERY URGENT
Marta_Voda [28]

Answer:

<u>D) (f o g)(x) = 10x² - 60x + 93</u>

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f(x) = 10x² + 3

g(x) = x - 3

⇒ (f o g)(x)

⇒ f(x - 3)

⇒ f(x - 3) = 10(x - 3)² + 3

⇒ f(x - 3) = 10(x² - 6x + 9) + 3

⇒ f(x - 3) = 10x² - 60x + 90 + 3

⇒ <u>(f o g)(x) = 10x² - 60x + 93</u>

6 0
2 years ago
Read 2 more answers
Determine whether the number is a perfect square 47
Ghella [55]
Perfect squares are n² where n is a whole number
whole numbers are like 0,1,2,3,4,5,6, etc
no decimal or fractions

we can do that be looking at the perfect squares we know
2²=4
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4²=16
5²=25
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7²=49
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so we see 47 is between 6² and 7²
therefor, for n²=47, n is between 6 and 7 and is therfore not a whole number
that makes 47 not a perfect square
7 0
3 years ago
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A certain pipe can be used to fill a pool with water in 2 hours. A second pipe can be used to fill the pool in 4 hours. How long
Kryger [21]

Answer:

1 1/3 hours

Step-by-step explanation:

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fills the pool in 2 hours

in 1 hour, it fills 1/2 of the pool

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in 1 hour, it fills 1/4 of the pool

Pipe 1 and Pipe 2 working together:

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in 1 hour, they fill 1/x of the pool

Working together, in 1 hour the two pipes fill 1/2 + 1/4 of the pool.

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3 years ago
Does anyone know the answer to this and how to solve it? I’m completely lost-
vovangra [49]

Answer:

314

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Does the line cuts through the diameter of the circle?

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7 0
3 years ago
Please help me.!
IRINA_888 [86]
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