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3 years ago

PLEASE HELP ME! EASY QUESTION PLEQSE EXPLAIN

Mathematics

1 answer:

-Dominant- [34]3 years ago

7 0

Answer:

Step-by-step explanation:

Here, we want to interpret what is meant by m(10) = k

Originally M(n) represents the fee in dollars for an nth drive

So M(10) will represent the fee in dollars for the 10th drive and is equal to K dollars

Correct option is C

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A police officer would like to estimate the proportion of petty theft cases that have gone unsolved in a large city. He takes a

nata0808 [166]

Answer:

$0.625 \pm 1.645*0.0571$

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

$\pi$ is the estimate

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ , also called the critical value.

The standard error is:

$s = \sqrt{\frac{\pi(1-\pi)}{n}}$

90% confidence level critical value

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.955$ , so $z = 1.645$ .

Estimate:

72 petty theft cases and finds 45 of these have gone unsolved.

So $\pi = \frac{45}{72} = 0.625$

Standard error:

$s = \sqrt{\frac{\pi(1-\pi)}{n}} = \sqrt{\frac{0.625*0.375}{72}} = 0.0571$

Answer:

$0.625 \pm 1.645*0.0571$

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3 years ago

1. Simplify .<br>* a) (x - 1)(x2 + x + 1)

tangare [24]

Answer:

x=1

Step-by-step explanation:

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3 years ago

List the correlation coefficients in order from least to greatest: 0.79,-0.43,-0.4,0.82,0.08

Mars2501 [29]

-0.43,-0.4,0.08,0.79,0.82

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What is the length of the missing side if<br>Side A: 8in <br>Side B: ?<br>Side C: 14 in

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Answer:

side b= 11.489

Step-by-step explanation:

well I'm doing the exact same lesson currently and I just did the test on this exact question soo yeahh

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2 years ago

Trig help ...............

Flauer [41]

Letter D

A = 135°
B = 30°

cosAcosB - sinAsinB = cos(A+B)

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cos(165°)

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3 years ago

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