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3 years ago

11

You want to find out what your new puppy weighs. While holding the puppy, you weigh 102 pounds on a scale. Your weight without t

he puppy is 83 pounds. How much does your puppy weigh?

2 answers:

seraphim [82]3 years ago

8 0

The weight of the puppy is 19 pounds (lbs)
you just subtract 102-83

Aneli [31]3 years ago

5 0

Peso total = 102
seu peso = 83
peso do cachorro = 102 - 83
peso do cachorro = 19

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Answer:

36.58% probability that one of the devices fail

Step-by-step explanation:

For each device, there are only two possible outcomes. Either it fails, or it does not fail. The probability of a device failling is independent of other devices. 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.

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This means that $n = 15$

Assume that each device has a probability of 0.05 of failure during the course of the monitoring period.

This means that $p = 0.05$

What is the probability that one of the devices fail?

This is $P(X = 1)$

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$P(X = 1) = C_{15,1}.(0.05)^{1}.(0.95)^{14} = 0.3658$

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7 0

3 years ago

The area of a rectangle is 72 cm square. The length of the rectangle is 6 cm longer than the width. What is the width of the rec

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The correct option will be : B) 6 cm.

<u><em>Explanation</em></u>

Suppose, the width of the rectangle is $x$ cm.

As, the length is 6 cm longer than the width, so the length will be: $(x+6) cm.$

<u>Formula for the Area of rectangle</u> is: $(Length)*(Width)$

Given that, the area of a rectangle is 72 cm²

So....

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Using zero-product property, we will get...

$x+12=0\\ x= -12$ <em>(Negative value is ignored as width can't be negative)</em>

and

$x-6=0\\ x=6$

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Answer:

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Step-by-step explanation:

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1 year ago

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