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4 years ago

10

Suppose you have two similar trapezoids with a scale factor of 2. If the angle measures of trapezoid ABCD are 80∘, 80∘, 100∘, an

d 100∘, what are the measures of the angles in trapezoid EFGH?

1 answer:

deff fn [24]4 years ago

7 0

Answer:

160, 160, 200, 200

Step-by-step explanation:

All you have to do is double the numbers.

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a student takes two subjects A and B. Know that the probability of passing subjects A and B is 0.8 and 0.7 respectively. If you

aniked [119]

Answer:

0.64 = 64% probability that the student passes both subjects.

0.86 = 86% probability that the student passes at least one of the two subjects

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

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

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Passing subject A

Event B: Passing subject B

The probability of passing subject A is 0.8.

This means that $P(A) = 0.8$

If you have passed subject A, the probability of passing subject B is 0.8.

This means that $P(B|A) = 0.8$

Find the probability that the student passes both subjects?

This is $P(A \cap B)$ . So

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

$P(A \cap B) = P(B|A)P(A) = 0.8*0.8 = 0.64$

0.64 = 64% probability that the student passes both subjects.

Find the probability that the student passes at least one of the two subjects

This is:

$p = P(A) + P(B) - P(A \cap B)$

Considering $P(B) = 0.7$ , we have that:

$p = P(A) + P(B) - P(A \cap B) = 0.8 + 0.7 - 0.64 = 0.86$

0.86 = 86% probability that the student passes at least one of the two subjects

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3 years ago

A shop owner increases some prices by 50%.

Dahasolnce [82]

1.5 is correct answer

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3 years ago

A Ferris wheel has a diameter of 90 feet. If a rider starts at the bottom of the wheel, how many feet does the rider travel afte

neonofarm [45]

Answer:

I dont get the question :(

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2 years ago

4x minus 9(3 minus x)

ANEK [815]

Answer:

13x-27

Step-by-step explanation:

Simplify the expression.

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3 years ago

Find the amount of the discount on a $234 item with a discount of 15%

kipiarov [429]

The amount of discount is is 35.1

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3 years ago

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