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bogdanovich [222]
3 years ago
7

Determine the perimeter of the triangle below 1/16cm x 3 1/16cm x 6/16cm simpliest form

Mathematics
1 answer:
worty [1.4K]3 years ago
5 0

Answer:

h

Step-by-step explanation:

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If $12.000 is invested in an account in which the interest earned is continuously
kykrilka [37]

Answer:

If 12,000 are put at an account with 2.5% compound interest in 15 years your total would be $17,379.58

7 0
2 years ago
3175÷66 partial quotient
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20.83333333333333333
3 0
3 years ago
A manufacturer produces light bulbs that have a mean life of at least 500 hours when the production process is working properly.
denpristay [2]

Answer:

We conclude that the population mean light bulb life is at least 500 hours at the significance level of 0.01.

Step-by-step explanation:

We are given that a manufacturer produces light bulbs that have a mean life of at least 500 hours when the production process is working properly. The population standard deviation is 50 hours and the light bulb life is normally distributed.

You select a sample of 100 light bulbs and find mean bulb life is 490 hours.

Let \mu = <u><em>population mean light bulb life.</em></u>

So, Null Hypothesis, H_0 : \mu \geq 500 hours      {means that the population mean light bulb life is at least 500 hours}

Alternate Hypothesis, H_A : \mu < 500 hours     {means that the population mean light bulb life is below 500 hours}

The test statistics that would be used here <u>One-sample z test statistics</u> as we know about the population standard deviation;

                           T.S. =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \bar X = sample mean bulb life = 490 hours

           σ = population standard deviation = 50 hours

           n = sample of light bulbs = 100

So, <u><em>the test statistics</em></u>  =  \frac{490-500}{\frac{50}{\sqrt{100} } }

                                     =  -2

The value of z test statistics is -2.

<u>Now, at 0.01 significance level the z table gives critical value of -2.33 for left-tailed test.</u>

Since our test statistic is higher than the critical value of z as -2 > -2.33, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <u>we fail to reject our null hypothesis.</u>

Therefore, we conclude that the population mean light bulb life is at least 500 hours.

7 0
3 years ago
50 points and brainliest for the best fastest answer
romanna [79]

Answer:

ha

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Why does the value of money you save increase over time?
RideAnS [48]

<u>Answer</u>

A. Because it earns interest.

<u>Explanation</u>

We save money in the financial institutions like banks and micro-finance institutions. This institutions uses this money to do business with it such as lending it to other people, setting up other money generation activities among others.  

By so doing your money must be increased since it is used in other ways. These money increase is known as interest.

So the money you save increase in value over the time because it earns interest.

5 0
3 years ago
Read 2 more answers
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