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2 years ago

Can you help me with this

Mathematics

2 answers:

Nuetrik [128]2 years ago

7 0

180-90-52= a

Which means a= 38°

Karo-lina-s [1.5K]2 years ago

3 0

Answer

38°

Step-by-step explanation:

52+90+x=180

180-52-90=x

x=38

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Answer:

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3 years ago

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Pani-rosa [81]

Answer:

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Step-by-step explanation:

We are given a joint probability table.

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1. Grade Ninth

2. Grade Tenth

3. Grade Eleventh

4. Grade Twelfth

Field trip refers to the students who will attending the amusement park field trip.

No field trip refers to the students who will not be attending the amusement park field trip.

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$P( eleventh\: \: |\: \: FT)= \frac{P( eleventh\: \: and \: \: FT)}{P(FT)}$

Where P(eleventh and FT) is the probability of students who are in eleventh grade and will be going to field trip

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Where P(FT) is the probability of students who will be going to field trip

$P(FT) = \frac{12}{92} + \frac{9}{92} + \frac{13}{92} + \frac{19}{92}\\\\P(FT) = 0.1304 + 0.0978 + 0.1413 + 0.2065\\\\P(FT) = 0.576 \\\\$

So the required probability is

$P( eleventh\: \: |\: \: FT)= \frac{P( eleventh\: \: and \: \: FT)}{P(FT)} \\\\P( eleventh\: \: |\: \: FT)= \frac{0.1413}{0.576} \\\\P( eleventh\: \: |\: \: FT)= 0.2453 \\\\P( eleventh\: \: |\: \: FT)= 24.53\% \\\\$

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3 years ago

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Explanation:

Given equation,

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