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2 years ago

Calculate the area of the shaded area below

Mathematics

2 answers:

MariettaO [177]2 years ago

8 0

Area of whole - White area = Shaded part

Area of rectangle = l*w
12*15= 180 ( whole)

8*10 = 80 ( white)

Shaded area = 180 - 80 = 100

STALIN [3.7K]2 years ago

7 0

Answer:

100

Step-by-step explanation:

4+8=12

10+5=15

15x12=180

8x10=80

180-80=100

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In a city school, 60% of students have blue eyes, 55% have dark hair, and 35% have blue eyes and dark hair. What is the probabil

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Answer:

58%

Step-by-step explanation:

This is a problem of conditional probability.

Let A represent the event that student has dark hair.

So P(A) = 55% = 0.55

Let B represents the event that student has blue eyes.

So, P(B) = 60% = 0.60

Probability that student has blue eyes and dark hairs = P(A and B) = 35% = 0.35

We are to find the probability that a randomly selected student will have dark hair, given that the student has blue eyes. Using the given formula and values, we get:

$P(A|B)=\frac{P(A \cap B)}{P(B)}\\\\ P(A|B)=\frac{0.35}{0.60}\\\\ P(A|B)=0.58$

Therefore, there is 0.58 or 58% probability that the student will have dark hairs, given that the student has blue eyes.

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Answer:

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Step-by-step explanation:

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2 years ago

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