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kiruha [24]
3 years ago
7

Geometry What is the value of x?

Mathematics
1 answer:
denis23 [38]3 years ago
8 0

Answer:

  x = 17 1/3

Step-by-step explanation:

Corresponding segments are proportional.

  (3x)/(4x) = (3x +7)/(5x -8)

  3(5x -8) = 4(3x +7) . . . . . . . . multiply by 4(5x-8)

  15x -24 = 12x +28 . . . . . . eliminate parentheses

  3x = 52 . . . . . . . . . . add 24-12x

  x = 17 1/3 . . . . . . . . . divide by 3

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No motion in either direction

C.

Step-by-step explanation:

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3 years ago
What does x equal? <br> Thanks!
11Alexandr11 [23.1K]

Answer: 33 degrees

Step-by-step explanation:

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A pentagonal prism is cut be a plane perpendicular to the base . What is the shape of the cross section that is formed?
Allisa [31]

Answer:

Step-by-step explanation:

The cross section will have the same shape as the base of the pentagonal prism; the dimensions will be proportionally smaller.

3 0
3 years ago
you measure the period of a mass oscillating on a vertical spring ten times as follows: period (s): 1.06, 1.31, 1.28, 0.99, 1.48
lidiya [134]

The mean and (sample) standard deviation σ = 0.2098.

<h3>What exactly would the standard deviation indicate?</h3>

The term "standard deviation" (or "") refers to the degree of dispersion of the data from the mean. Data are grouped around the mean when the standard deviation is low, and are more dispersed when the standard deviation is high.

<h3>According to given information:</h3>

The mean is the product of the dataset's total and the sample size. Mathematically.

\bar{x}=\frac{\sum X_i}{N}

The individual periods are Xi.

The sample size is N.

\sum X i = 1.06 + 1.31 + 1.28 + 0.99,+  1.48 + 1.37+  0.98 + 1.31 + 1.59 + 1.55

\sum X i = 12.92

N = 10

While substituting the value we get:

x = 12.96/10

x = 1.292

The samples' average is 1.292.

The standard deviation:

\sigma=\sqrt{\frac{\sum(x-\bar{x})^2}{N}}

\sum(x-\bar{x})^2 = (1.48-1.292)^2+(1.37-1.292)^2+(0.98-1.292)^2+(1.31-1.292)^2+(1.59-1.292)^2+(1.55-1.292)^2.

\sum(x-\bar{x})^2 = 0.43996

Putting into the formula we get:

\sigma=\sqrt{\frac{0.43996}{10}}

σ = √(0.043996)

σ = 0.2098

The mean and (sample) standard deviation σ = 0.2098.

To know more about standard deviation visit:

brainly.com/question/18521100

#SPJ4

I understand that the question you are looking for is:

You measure the period of a mass oscillating on a vertical spring ten times as follows:

Period (s): 1.06, 1.31, 1.28, 0.99, 1.48, 1.37, 0.98, 1.31, 1.59, 1.55

Required:

What are the mean and (sample) standard deviation?

a. Mean: 1.228, Standard Deviation: 0.2135

b. Mean: 1.325, Standard Deviation: 0.1674

c. Mean: 1.292. Standard Deviation: 0.2211

d. Mean: 1.228, Standard Deviation: 0.2098

e. Mean: 1.292, Standard Deviation: 0.2135

7 0
1 year ago
I need help because I don’t know how to do this
wolverine [178]

Answer:

t^5 = t to the power of five.

Step-by-step explanation:

3 0
3 years ago
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