All categories

3 years ago

HI how are you doing.

SAT

1 answer:

Aleksandr [31]3 years ago

3 0

Answer:

Question

Explanation:

You might be interested in

N= 30 x= 89.3 s=18.9 90 percent

zalisa [80]

Answer:

Explanation:

7 0

3 years ago

A ceiling fan operates at three speeds, using 120 v of electricity from the wall. At low speeds, it uses 0. 25 a. Calculate the

wolverine [178]

A) The calculated resistance needed to generate the current at low speed is; R = 480 ohms

B) Resistance at medium and larger speeds are;

At medium speed; R is less than that at low speed

At larger speed; R is less than that at medium speed.

A) We are given;

Voltage; V = 120 V

Current at lower speed; I = 0.25 A

Formula for resistance here is;

R = V/I

R = 120/0.25

R = 480 ohms

B) This means that if larger currents are required at higher speeds, it means that lower resistance would be required.

Similarly at medium currents the resistance will be lesser than that at lower speed but greater than that at larger speeds.

Read more on ohms law at; brainly.com/question/1220677

6 0

2 years ago

What technique did the artist of the painting above use to capture the light reflecting on the water?

almond37 [142]

What technique did the artist of the painting above use to capture the light reflecting on the water?

Rapid brushstrokes

7 0

2 years ago

Read 2 more answers

Students in a statistics class are conducting a survey to estimate the mean number of units students at their college are enroll

Andrew [12]

Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval for the number of units students in their college are enrolled in is (11.7, 12.7).

<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 <em>95% confidence interval</em>, with 49 - 1 = <em>48 df</em>, is t = 2.0106.

Hence:

$\overline{x} - t\frac{s}{\sqrt{n}} = 12.2 - 2.0106\frac{1.6}{\sqrt{49}} = 11.7$

$\overline{x} + t\frac{s}{\sqrt{n}} = 12.2 + 2.0106\frac{1.6}{\sqrt{49}} = 12.7$

The 95% confidence interval for the number of units students in their college are enrolled in is (11.7, 12.7).

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

4 0

2 years ago

Which letter on the map is closest to the olmec civilization? a) a b) b c) c d) d

mylen [45]

Answer:

C) C

Explanation:

it seems to be the closest

3 0

2 years ago