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Harrizon [31]
2 years ago
12

Pls solve asap

Mathematics
2 answers:
PIT_PIT [208]2 years ago
6 0
19-6v/2
————-
4

Alternative form: 2.62868

(This: v/ is supposed to mean squared)

Hope this helped :)
8090 [49]2 years ago
4 0

Answer:

\frac{19-6\sqrt{2} }{4}

(2.6286797)

Step-by-step explanation:

(\frac{2}{3\sqrt{2}-1 })^2 = \frac{4(19+6\sqrt{2})}{289}

for fractions, 1 / x / y = y / x    

\frac{1}{\frac{x}{y} } = \frac{y}{x}

so, we are left with:

\frac{289}{4(19+6\sqrt{2})}

then we cancel into \frac{19-6\sqrt{2} }{4}

and that's your answer :)

\frac{19-6\sqrt{2} }{4} = 2.62867965644

(you don't need it to be that exact but it's fun to write unnecessarily long decimals)

so, in decimal form: 2.6286797

hope this is helpful!!

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Triangle E G F is shown. The length of E G is 10 and the length of E F is 12. Angle E F G is 56 degrees.
omeli [17]

Answer:

29

Step-by-step explanation:

Triangle E G F is shown. The length of E G is 10 and the length of E F is 12. Angle E F G is 56 degrees.

Trigonometric area formula: Area = One-half a b sine (C)

The area of triangle EFG is 34.8 square units. What is the perimeter of triangle EFG to the nearest unit?

29 units

30 units

41 units

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7 0
4 years ago
In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-s
iris [78.8K]

Answer:

0.6826

Step-by-step explanation:

Mean(μ) = 37

Standard deviation (σ) = 9

P(28 < x < 46) = ???

Using normal distribution

Z = (x - μ)/σ

For x = 28

Z = (28 - 37)/9

Z = -9/9

Z = -1

For x = 46

Z = (46 - 37)/9

Z = 9/9

Z = 1

We now have

P(-1 < Z < 1)

= P(Z < 1) - P(Z < -1)

From the table, Z = 1 = 0.3413

φ(Z) = 0.3413

Recall that

When Z is positive, P(x<a) = 0.5 +φ(Z)

P(Z<1)= 0.5 + 0.3413

= 0.8413

When Z is negative, P(x<a) = 0.5 - φ(Z)

P(Z< -1)= 0.5 - 0.3413

= 0.1587

We now have

0.8413 - 0.1587

= 0.6826

8 0
3 years ago
12. Make a box-and-whisker plot of the data. (1 point)
Sophie [7]

The box-and-whisker plot of the data, showing the five-number summary, is shown in the image atatched below.

<h3>What is the Box-and-whisker Plot?</h3>

The box-and-whisker plot is a plot that displays the minimum, maximum, median, lower and upper quartile of a data, which is termed as the five-number summary of a data.

Given the data, 20, 23, 28, 14, 13, 24, 18, 11, find the five-number summary:

  • Minimum - 11
  • Lower Quartile - 13.5
  • Median - 19
  • Upper Qaurtile - 23.5
  • Maximum - 28

Therefore, the box-and-whisker plot of the data, showing the five-number summary, is shown in the image atatched below.

Learn more about box-and-whisker ploton:

brainly.com/question/12343132

4 0
3 years ago
Hurry up!plz help I am in trouble​
Tema [17]

Answer:

24.2 marks

Step-by-step explanation:

25 + 36 + 20 + 15 + 24 + 30 + 38 + 32 + 22 = 242

since there are 10 students we divide 242 by 10 and get 24.2

4 0
3 years ago
Read 2 more answers
Plot the number 2.78 on the number line please help me
Alex777 [14]
It would be between 2.77 and 2.79
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4 years ago
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