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1 year ago

The base of a solid S is the region bounded by the parabola x^2=8y

Mathematics

1 answer:

nexus9112 [7]1 year ago

8 0

Step-by-step explanation:Updated answer is the second one

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Question in screenshot

sesenic [268]

Answer:

Step-by-step explanation:

use pythagorean theorm

√(8^2+6^2) = 10

6 0

3 years ago

Find the area of the figure and type your result in the empty box.

pentagon [3]

Answer:

iyge4dutgn

Step-by-step explanation:

n8uj98ju6g

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2 years ago

Three fourths of a page are read in 2 minutes how many are read in one minute?

Dmitrij [34]

Answer:

3/8 of a page

Step-by-step explanation:

3/4=2 minutes

3/8 pages in a minute

You take 3/4 and divide by 2 to get 3/8

7 0

2 years ago

Which type of reasoning allows you to use observation to find the next three values in the number pattern 1,4,7,10.....?

Mice21 [21]

Answer:

The next number in the pattern is 13.

Step-by-step explanation:

From 1, i add 3 and i get 4, then i add 3 to 4 and get 7 and then i add 3 to 7 to get 10. From here you can quickly observe that you add three to ten to get 13

3 0

2 years ago

Suppose that time spent on hold per call with customer service at a large telecom company is normally distributed with a mean µ

lana66690 [7]

Answer:

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8 minutes

Standard Deviation, σ = 2.5 minutes

Sample size, n = 25

We are given that the distribution of time spent is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{2.5}{\sqrt{25}} = 0.5$

P(sample mean is between 7.8 and 8.2 minutes)

$P(7.8 \leq x \leq 8.2)\\\\ = P(\displaystyle\frac{7.8 - 8}{0.5} \leq z \leq \displaystyle\frac{8.2-8}{0.5})\\\\ = P(-0.4 \leq z \leq 0.4})\\\\= P(z < 0.4) - P(z < -0.4)\\\\= 0.6554 -0.3446= 0.3108$

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

4 0

3 years ago