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3 years ago

2 1/6*3 3/2/(-5 3/2) Explain step by step please

Mathematics

1 answer:

Lady bird [3.3K]3 years ago

3 0

Answer:

-1 1/2

Step-by-step explanation:

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How do you do this? plz I really need help.

Vlada [557]

The top two answers are equivalent, while the bottom one is not. You would use distributive property in the parentheses. If both expressions are the same, they are equivalent

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2 years ago

The following lists the joint probabilities associated with smoking and lung disease among 60-to-65 year-old men. Has Lung Disea

Anna71 [15]

Answer:

4.11% probability that he has lung disease given that he does not smoke

Step-by-step explanation:

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: Does not smoke

Event B: Lung disease

Lung Disease/Nonsmoker 0.03

This means that $P(A \cap B) = 0.03$

Lung Disease/Nonsmoker 0.03

No Lung Disease/Nonsmoker 0.7

This means that $P(A) = 0.03 + 0.7 = 0.73$

What is the probability of the following event: He has lung disease given that he does not smoke?

$P(B|A) = \frac{0.03}{0.73} = 0.0411$

4.11% probability that he has lung disease given that he does not smoke

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2 years ago

the admission fee at the amusement park is $3.00 for children and 6.40 fo adults on a certain day 275 people entered the park an

Sonbull [250]

Children=x
Adults=y
* x + y =275 => x = 275 - y
* 3.00x + 6.40y = 1284 <=> 3.00(275 - y) + 6.40y = 1284 <=> ... <=> y = 135 => x = 275 - 135 = 140
Children: 140
Adults: 135

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2 years ago

Read 2 more answers

Will give Extra points ⭐️⭐️

zhannawk [14.2K]

The domain is the range of the x-axis. In this situation the x range from 0 to 11, so the domain is D.

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2 years ago

Ratio of boys to girls is 2:7. There are 250 more girls than boys. How many boys are there

nata0808 [166]

I hope this helps you