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3 years ago

Help meeeeeeeeee plz qwq

Mathematics

2 answers:

Vladimir79 [104]3 years ago

8 0

1: A
2: C
3: B
4: D
Those are the ones I could help you with

Gala2k [10]3 years ago

3 0

Answer:

1. A

2. C

3. B

4. D

5. The customer will save $5 by purchasing the annual subscription

6. The best option for savings would be the 30% off option

8. A) True B) False C) False

Step-by-step explanation:

This is all I could answer, I'm not sure how to answer 7 or 8 for B and C

But I hope this helps you get started.

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Which algebraic expression represents "the quotient of 7 and a number"? 7/n O 7+n o 7n 7-n

Mekhanik [1.2K]

Answer:

7/n

Step-by-step explanation:

quotient means division and the only answer choice with a division sign is 7/n where n is the unknown number.

Hope this helped and pls mark brainliest!

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3 years ago

The radius of the larger circle is 10 cm. The radius of the smaller circle is 5 cm. What is the approximate area of the shaded r

Fynjy0 [20]

100*3.14= 314

25*3.14=78.5

314-78.5=235.5

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3 years ago

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Factorizar o descomponer en de FACTORES

Charra [1.4K]

Not sure if you’re speaking Spanish or not but yes

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3 years ago

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

3 years ago

Find the student’s error in solving the following inequality.

Volgvan

31 < -5x + 6
-6 -6
25 < -5x
-5 -5
-5 < x
x > -5

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