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MaRussiya [10]
3 years ago
5

If you were to solve the following system of equations by using a matrix,

Mathematics
1 answer:
Studentka2010 [4]3 years ago
4 0

Answer:

I believe it is C but it's good to double check

Step-by-step explanation:

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A sample of blood pressure measurements is taken for a group of​ adults, and those values​ (mm Hg) are listed below. The values
nika2105 [10]

Answer:

For systolic pressure data:

\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085

For diastolic pressure data:

\bar X =73.5\\\\S=12.54\\\\CV=\frac{73.5}{12.54}=0.17061

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

Step-by-step explanation:

The coefficient of variation is defined as the percentage relative variation of a set of data with respect to its average. And it is calculated like this:

CV=\frac{\bar X}{S}

S =\sqrt{\frac{1}{n-1} \sum_{i=1}^n (x_i-\bar{x})^2

\bar X={\frac{1}{n} \sum_{i=1}^n x_i

For systolic pressure data:

\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085

For diastolic pressure data:

\bar X =73.5\\\\S=12.54\\\\CV=\frac{12.54}{73.5}=0.17061

It is observed that the systolic pressure shows greater standard deviation but less coefficient of variation. This is due to the greater magnitude of its measurement scale.

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

7 0
3 years ago
While playing with magnetic building tiles, Natalie constructed a square pyramid out of
Dovator [93]

The height of the green pyramid constructed  by Natalie while playing with magnetic building tiles is 26.25 cm.

<h3>Volume of the orange pyramid</h3>

The volume of the orange pyramid is calculated as follows;

V = ¹/₃Ah

where;

  • A is the base area of the pyramid
  • h is the height of the pyramid

V = ¹/₃ x (7²) x 5

V  = ¹/₃ x (245 cm³)

<h3>Volume of the green pyramid</h3>

Voume = 21 x [¹/₃ x (245 cm³)]

Volume = 1,715 cm³

<h3>Height of the green pyramid</h3>

V = ¹/₃Ah

3V = Ah

h = 3V/A

h = (3 x 1715) / (14²)

h = 26.25 cm

Learn more about area of pyramid here: brainly.com/question/22744289

#SPJ1

5 0
2 years ago
How many feet are in 42 inches
yarga [219]

Answer:

3.5 feet.

Step-by-step explanation:

There are 12 inches in a foot.

So, 42 ÷ 12 = 3.5.

Hope this helped, have a blessed day and best of luck!

7 0
3 years ago
Read 2 more answers
Calculate the sales tax for each item.
Brilliant_brown [7]

Answer:

1. $1.19

2. $2.25

3. $8.40

4. $120

5. $2.10

Step-by-step explanation:

Multiply the money by the sales tax. Calculators help.

3 0
3 years ago
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What’s the answer quick giving brainliest to the correct answer
vlada-n [284]

Answer:. p ≤ 5.

Step-by-step explanation:

7 0
3 years ago
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