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1 year ago

a jar contains 4 cherry drops and 10 honey cough drops tpu choose on cough drop with out looking the cough drop is cherry

Mathematics

1 answer:

umka2103 [35]1 year ago

4 0

Total drops = 4 + 10 = 14
Total cherry drop = 4

P(cherry) = 4/14 = 2/7

Answer:P(Cherry) = 2/7

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A hot air balloon can hold up to 300 pounds of weight. The balloon's pilot weighs 140 pounds. How many 20-pound bags of sand (b)

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0,5, and 8 are the 3 that are correct. You cannot have negative bags of course. Also it cannot be 10 because the balloon cannot hold that much weight.

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1 year ago

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A geometry teacher asked Charlene to define “acute triangle.” Charlene said that an acute triangle is a triangle whose three int

Slav-nsk [51]

By definition we have to:
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1 year ago

Meeting at least one person with the flu in thirteen random encounters on campus when the infection rate is 2% (2 in 100 people

s344n2d4d5 [400]

Answer:

23.1% probability of meeting at least one person with the flu

Step-by-step explanation:

For each encounter, there are only two possible outcomes. Either the person has the flu, or the person does not. The probability of a person having the flu is independent of any other person. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Infection rate of 2%

This means that $p = 0.02$

Thirteen random encounters

This means that $n = 13$

Probability of meeting at least one person with the flu

Either you meet none, or you meet at least one. The sum of the probabilities of these outcomes is 1. So

$P(X = 0) + P(X \geq 1) = 1$

We want $P(X \geq 1)$ . Then

$P(X \geq 1) = 1 - P(X = 0)$

In which

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{13,0}.(0.02)^{0}.(0.98)^{13} = 0.7690$

$P(X \geq 1) = 1 - P(X = 0) = 1 - 0.769 = 0.231$

23.1% probability of meeting at least one person with the flu

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1 year ago

A radio station receives 3815 phone calls in 35 min. How many calls does it get in 1 hr? Show Your Work.

Hatshy [7]

In 1 min it receives 3815/35=109 so in 1 hour it receives 109x60=6540 calls

8 0

1 year ago

What is the scale factor of polygon qrstu to poligon defgh

koban [17]

Answer:

Step-by-step explanation:

Since the two polygons are similar, corresponding sides will have a constant ratio. So, the ratio between ST and FG will be the same as the scale factor between the two shapes.

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Therefore, the correct answer is choice A. Hope this helps!

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1 year ago