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3 years ago

I needa help please?!

Mathematics

2 answers:

tamaranim1 [39]3 years ago

8 0

<h3>Answer: 12 + 6z</h3>

This is the same as 6z+12 since adding two numbers can be done in any order.

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Explanation:

The outer term is 2. The inner terms are 6 and 3z.

Use the distributive property to multiply the outer term by each inner term

2*6 = 12

2*3z = 6z

Then we add up the results to get 12+6z. We don't have any like terms, so we cannot combine them. We leave them as is.

Morgarella [4.7K]3 years ago

7 0

Answer:

12 + 6z

Step-by-step explanation:

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A company produces computer batteries. Everyday, the company produces exactly 500 batteries. To keep track of how many batteries

valkas [14]

Using the binomial distribution, it is found that about 75 batteries each day are defective.

For each battery, there are only two possible outcomes, either it is defective, or it is not. The probability of a battery being defective is independent of any other battery, hence the <em>binomial distribution</em> is used to solve this question.

<h3>What is the binomial probability distribution?</h3>

It is the probability of exactly <u>x successes on n repeated trials, with p probability</u> of a success on each trial.

The expected value of the binomial distribution is:

$E(X) = np$

In this problem:

3 out of 20 batteries are defective, hence p = 3/20 = 0.15.

Each day, 500 batteries are produced, hence n = 500.

Then, the expected number of defective batteries in a day is given by:

E(X) = np = 500(0.15) = 75.

More can be learned about the binomial distribution at brainly.com/question/14424710

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3 years ago

Find the circumference of the circle

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Answer:

Formula for circumference;

C = 2πr

replace those values

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C = 56.52 inches, C

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2 years ago

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What is the solution, if any, to the inequality |3x|>_0?|

WINSTONCH [101]

Answer:

x $\geq$ 0

Step-by-step explanation:

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3 years ago

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Write the partial fraction decomposition fro the ration expression below

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$\dfrac{5x-2}{(x-1)^2}=\dfrac a{x-1}+\dfrac b{(x-1)^2}$
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$\dfrac{x^3+x^2+x+2}{x^4+x^2}=\dfrac{x^3+x+x+2}{x^2(x^2+1)}=\dfrac ax+\dfrac b{x^2}+\dfrac{cx+d}{x^2+1}$
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When $x=0$ , you find that $b=2$ . It's also clear that $a=1$ . So the remaining constants must be $1+c=1\implies c=0$ and $2+d=1\implies d=-1$ , and so you get

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4 years ago

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sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

.5, .6, .72, .75, .84

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3 years ago