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3 years ago

1.2 List the first 3 multiples of 5 greater than 20.

Mathematics

1 answer:

Licemer1 [7]3 years ago

3 0

Answer:

1-2-3

Step-by-step explanation:

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15 + (-15) = SOLVEE 10 points

prisoha [69]

15+(-15)=0 I hope this helps

4 0

3 years ago

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We wish to give a 90% confidence interval for the mean value of a normally distributed random variable. We obtain a simple rando

coldgirl [10]

Answer: $(9.27025,\ 11.12975)$

Step-by-step explanation:

Given : Sample size : n= 9

Degree of freedom = df =n-1 =8

Sample mean : $\overline{x}=10.2$

sample standard deviation : $s= 1.5$

Significance level ; $\alpha= 1-0.90=0.10$

Since population standard deviation is not given , so we use t- test.

Using t-distribution table , we have

Critical value = $t_{\alpha/2, df}=t_{0.05 , 8}=1.8595$

Confidence interval for the population mean :

$\overline{x}\pm t_{\alpha/2, df}\dfrac{s}{\sqrt{n}}$

90% confidence interval for the mean value will be :

$10.2\pm (1.8595)\dfrac{1.5}{\sqrt{9}}$

$10.2\pm (1.8595)\dfrac{1.5}{3}$

$10.2\pm (1.8595)(0.5)$

$10.2\pm (0.92975)$

$(10.2-0.92975,\ 10.2+0.92975)$

$(9.27025,\ 11.12975)$

Hence, the 90% confidence interval for the mean value= $(9.27025,\ 11.12975)$

6 0

3 years ago

ONLY ANSWER NUMBER 1! name the supplement of

Illusion [34]

Answer:

It's angle ABE

Step-by-step explanation:

It's supplementary because the sum of the measurements of both angles EBC and ABE is 180°

3 0

3 years ago

Nan rode the roller coaster 8 times, which was twice as many times as she rode the F erris wheel

lyudmila [28]

So she rode the Ferris Wheel 4 times. 8/2= 4

8 0

3 years ago

MA = (4x - 2) and mzB = (11x + 17)°. Find x if the angles are

charle [14.2K]

The answer is a.) 165 sorry if that’s wrong but i hope it’s right

3 0

3 years ago

Read 2 more answers