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2 years ago

HELP PLEASE!! 13 Points Offered

Mathematics

1 answer:

Sholpan [36]2 years ago

4 0

Answer:

C: 124

Step-by-step explanation:

If you look at the angle it has to be over 90 degrees so therefore your only option is C: 124.

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What’s 45 divided by 14.04

Vladimir79 [104]

Answer:

3.205

Step-by-step explanation:

convert the decimal number to a fraction

$45 \div \frac{351}{25}$

To divide by fraction, multiply by the reciprocal of that fraction

$45 \times \frac{25}{351}$

Reduce the numbers with the greatest common divisor 9

$5 \times \frac{25}{39}$

Calculate the product

$\frac{125}{39}$

Now turn it to a decimal which will be

$3.20513$

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3 years ago

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Julli [10]

I’m pretty sure it is 71

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3 years ago

Multiplicacion de 3 Dube.com Dube

RSB [31]

Answer:

please brailiest :)

yan ang lahat ng answer good luck

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2 years ago

A man left his waiter a $10 tip that was 20% of his bill. How much was the man's bill?

attashe74 [19]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

You are told that in a sample of size 225 the mean is 48.5 and the standard deviation is 1.8. the study is reported with 90% con

balu736 [363]

Using the t-distribution, it is found that the 90% confidence interval is (48.3, 48.7), hence 48.8 is not within the interval.

<h3>What is a t-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm t\frac{s}{\sqrt{n}}$

In which:

$\overline{x}$ is the sample mean.

t is the critical value.

n is the sample size.

s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed <u>90% confidence interval</u>, with 225 - 1 = 224 df, is t = 1.6517.

The other parameters are given as follows:

$\overline{x} = 48.5, s = 1.8, n = 225$ .

Hence the bounds of the interval are given by:

$\overline{x} - t\frac{s}{\sqrt{n}} = 48.5 - 1.6517\frac{1.8}{\sqrt{225}} = 48.3$

$\overline{x} + t\frac{s}{\sqrt{n}} = 48.5 + 1.6517\frac{1.8}{\sqrt{225}} = 48.7$

The 90% confidence interval is (48.3, 48.7), hence 48.8 is not within the interval.

More can be learned about the t-distribution at brainly.com/question/16162795

#SPJ4

7 0

2 years ago