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2 years ago

Substitute (= 3 and 1-6 to determine if the two expressions are equivalent.

Mathematics

1 answer:

mezya [45]2 years ago

4 0

Answer:a b d

Step-by-step explanation:

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Assume you are planning a picnic for lunch, but when you woke up there were rain clouds in the sky. If 50% of rainy days start w

Tasya [4]

Answer:

0.25 = 25% probability that it will rain today and ruin your picnic

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: Cloudy skies

Event B: Rain

20% of all days start with clouds in the air

This means that $P(A) = 0.2$

50% of rainy days start with rain clouds in the air

50% of 10%. So

$P(A \cap B) = 0.5*0.1 = 0.05$

What is the probability that it will rain today and ruin your picnic

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.05}{0.2} = 0.25$

0.25 = 25% probability that it will rain today and ruin your picnic

3 0

2 years ago

The temperature in St. Louis, Missouri, is 31°F. The temperature in Duluth, Minnesota, is -29°F. Is the temperature in St. Louis

Sati [7]

-29 is 29 degrees away from 0 degrees.

31 is 31 degrees away from 0 degrees.

-29 (the temperature in Duluth) is closer to 0, because 29 is less than 31.

3 0

2 years ago

How do you do -2(t + 4)

Troyanec [42]

-2 (t+4)= -2 (t)+-2 (4)= -2t-8

7 0

2 years ago

Read 2 more answers

What is the factor for 30n-40

nikitadnepr [17]

Factor:
<span>30n - 40 = 10(3n - 4)

hope it helps</span>

7 0

2 years ago

100 points, very easy anwser asap

levacccp [35]

Answer:

An Arc

Step-by-step explanation:

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2 years ago