All categories

3 years ago

Please help!! I need to finish this quick

Mathematics

1 answer:

Natalija [7]3 years ago

4 0

Theorem: pythagorean

Equation: 5^2 + h^2 = 8^2

Solving:

25 + h^2 = 64
h^2 = 39
h =
$\sqrt{39 }$

Hope this helps!! :)

You might be interested in

Helllllp plz don't know it

xxMikexx [17]

The answer is 1/2. 1/5 is equal to 2/10, and 2/10 + 3/10 = 5/10. 5/10 is equal to 1/2 in simpelst form.

7 0

4 years ago

Read 2 more answers

a consumer magazine counts the number of tissues per box in a random sample of 15 boxes of No- Rasp facial tissues. The sample s

Alex

Answer:

95% confidence interval for the population variance of the number of tissues per box is [5043.11 , 23401.31].

Step-by-step explanation:

We are given that a consumer magazine counts the number of tissues per box in a random sample of 15 boxes of No- Rasp facial tissues. The sample standard deviation of the number of tissues per box is 97.

Firstly, the pivotal quantity for 95% confidence interval for the population variance is given by;

P.Q. = $\frac{(n-1)s^{2} }{\sigma^{2} }$ ~ $\chi^{2}__n_-_1$

where, $s^{2}$ = sample variance = $97^{2}$ = 9409

n = sample of boxes = 15

$\sigma^{2}$ = population variance

Here for constructing 95% confidence interval we have used chi-square test statistics.

So, 95% confidence interval for the population variance, $\sigma^{2}$ is ;

P(5.629 < $\chi^{2}__1_4$ < 26.12) = 0.95 {As the critical value of chi-square at 14

degree of freedom are 5.629 & 26.12}

P(5.629 < $\frac{(n-1)s^{2} }{\sigma^{2} }$ < 26.12) = 0.95

P( $\frac{5.629 }{(n-1)s^{2} }$ < $\frac{1}{\sigma^{2} }$ < $\frac{26.12 }{(n-1)s^{2} }$ ) = 0.95

P( $\frac{(n-1)s^{2} }{26.12 }$ < $\sigma^{2}$ < $\frac{(n-1)s^{2} }{5.629 }$ ) = 0.95

95% confidence interval for $\sigma^{2}$ = [ $\frac{(n-1)s^{2} }{26.12 }$ , $\frac{(n-1)s^{2} }{5.629 }$ ]

= [ $\frac{14 \times 9409 }{26.12 }$ , $\frac{14 \times 9409 }{5.629 }$ ]

= [5043.11 , 23401.31]

Therefore, 95% confidence interval for the population variance of the number of tissues per box is [5043.11 , 23401.31].

6 0

3 years ago

Which sentence can represent the inequality 3. 5 x greater-than-or-equal-to 7? The sum of 3. 5 and a number is greater than 7. T

Anni [7]

Answer: The product of 3. 5 and a number is greater than or equal to 7.

Step-by-step explanation:

6 0

3 years ago

Kyle believes that the equation of the line of best fit for the scatterplot below is y= -7/5x-1/5 Which statement best summarize

fenix001 [56]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Below are the choices:

A. Kyle’s equation has a negative y-intercept, but the scatterplot shows a point on the y-axis with a positive y-value.
B. Kyle’s equation has a negative y-intercept, but the scatterplot shows a positive correlation.
C. Kyle’s equation has a negative slope, but the scatterplot shows a point on the y-axis with a positive y-value.
D. Kyle’s equation has a negative slope, but the scatterplot shows a positive correlation.

The answer is D.

6 0

3 years ago

Read 2 more answers

What is the circumstance of the circle 5cm

MakcuM [25]

Answer:

31.4 cm

Step-by-step explanation:

5x3.14x2 = 31.4 cm

3 0

3 years ago