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3 years ago

Plz need help. I’m stuck on this one

Mathematics

1 answer:

Ghella [55]3 years ago

8 0

Answer:

The product of 3 $\sqrt{8}$ (4 $\sqrt{3}$ ) is 24 $\sqrt{6}$

The answer is A.

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2. Calculate the area of the rectangle below.<br>4 cm<br>IN<br>10 cm<br>Answer

kozerog [31]

Answer:

40 cm squared

Step-by-step explanation:

Area = length * width

10*4cm = 40 cm squared

4 0

3 years ago

What was the answer to the example: (9/2 converted to a mixed number is:)

miskamm [114]

Answer:

9/2

2+2+2+2=8

9-8=1

2 can go into 9 four whole times

4 1/2

Step-by-step explanation:

4 0

3 years ago

How do I simplify and solve for x for 3x-7=2

saul85 [17]

$3x-7=2\ \ \ \ \ \ \ \ |add\ 7\\\\3x=2+7\\\\3x=9\ \ \ \ \ \ \ |:3\\\\x=3\\$

8 0

3 years ago

Read 2 more answers

Researchers are studying the distribution of subscribers to a certain streaming service in different populations. From a random

Katen [24]

Answer:

$CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}$

Step-by-step explanation:

Given

$n = 200$

$x_1 = 34$ -- City C

$x_2 = 54$ --- City K

Required

Determine the 90% confidence interval

This is calculated using:

$CI = \bar x \± z\frac{\sigma}{\sqrt n}$

Calculating $\bar x$

$\bar x = \bar x_1 - \bar x_2$

$\bar x = \frac{x_1}{n} - \frac{x_2}{n}$

$\bar x = \frac{34}{200} - \frac{54}{200}$

$\bar x = 0.17 - 0.27$

For a 90% confidence level, the z-score is 1.65. So:

$z = 1.65$

Calculating the standard deviation $\sigma$

$\sigma = \sqrt{(\bar x_1)*(1 - \bar x_1) + (\bar x_2)*(1 - \bar x_2) }$

So:

$\sigma = \sqrt{(0.17)*(1 - 0.17) + (0.27)*(1 - 0.27) }$

$\sigma = \sqrt{(0.17)*(0.83) + (0.27)*(0.73)}$

So:

$CI = (0.17 - 0.27)\± 1.65\frac{\sqrt{(0.17)*(0.83) + (0.27)*(0.73)}}{\sqrt {200}}$

$CI = (0.17 - 0.27)\± 1.65\sqrt{\frac{(0.17)*(0.83) + (0.27)*(0.73)}{200}}$

7 0

2 years ago

Jerome has a job that requires a clean shirt every day. It cost $1.25 to have a shirt washed and ironed. What is the cost for cl

Naily [24]

Answer:

$6.25

Step-by-step explanation:

1.25 x 5 = 6.25

it´s the cost times how ever many days

3 0

3 years ago

Read 2 more answers