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4 years ago

I'VE BEEN STRUGGLING ON THIS QUESTION FOR DAYS SOMEONE PLEASE HELP ME PLEASE!!!

Mathematics

2 answers:

Mars2501 [29]4 years ago

6 0

Answer:

Step-by-step explanation:

When finding a percent of change, subtract the original from the new.

150 - 132 = 18

Then put the result over the original number, and divide.

18/132

Divide to find the percentage of change.

about 13.64% rounded

Hope this helped. If it did, then....

<em>PLEASE MARK BRAINLIEST</em>

Sliva [168]4 years ago

5 0

Answer:14%

Step-by-step explanation:

Given : Orignial number= 132

New number = 150

Change in number = New- Orignial

= 150-132=18

Now, percentage change is given by :-

$\text{ Percent change}=\dfrac{\text{Change}}{\text{ Orignial} }\times 100\\\\=\dfrac{18}{132}\times 100=13.63636\%\approx14\%$

[ Rounded to the nearest whole percent]

Therefore, the percent change= 14%

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nikklg [1K]

Irrational roots occurs with its conjugate.

Therefore, -√3 is also root of the function.

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3 years ago

Read 2 more answers

Divide. Reduce the answer to lowest terms. 3/4 ÷ 1/3

Slav-nsk [51]

Answer:

9/4

Step-by-step explanation:

When you divide by a number, whole number or fraction, it's exactly like multiplying by its inverse.

Like if you divide 4 by 2, you can easily express that has 4 * 1/2.

In the same manner, when you divide 3/4 by 1/3, you can say that you're multiplying 3/4 by 3/1

The result of 3/4 * 3/1 = 9 / 4

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4 years ago

Please help I will give brainlest or whatever!!

Mashutka [201]

The answer is D 6z+42

8 0

3 years ago

Select the correct answer.

nydimaria [60]

Answer:

It is CD

Step-by-step explanation:

because 300+200=500, juts times it by 3 and divide

5 0

2 years ago

"the life length x (in years) of a dvd player" is exponentially distributed with mean 5 years. what is the probability that a mo

loris [4]

The exponential distribution is:
$\lambda e^{- \lambda x}$
where $\lambda = \frac{1}{mean}=\frac{1}{5}$

The probability we want is how likely will a dvd player last more than 8 years, given it has already lasted 5 years
To find this, you use conditional probability.
$P(A|B) = \frac{P(A and B)}{P(B)}$
where A is P(x>8) and B is P(x>5)
To find these probabilities, integrate over the distribution:
$P(x \ \textgreater \ N) = \int_N^{\infty} \frac{1}{5} e^{-x/5} dx = e^{-N/5}$

Sub into conditional probability formula:

$P(x \ \textgreater \ 8 | x\ \textgreater \ 5) = \frac{P(x\ \textgreater \ 8)}{P(x\ \textgreater \ 5)} = \frac{e^{-8/5}}{e^{-5/5}} = e^{-3/5} = 0.549$

Final Answer: Given a dvd player is more than 5 years old, the probability that it will last another 3 more years is about 54.9%

3 0

3 years ago