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wolverine [178]
3 years ago
7

Find standard deviation 22,25 30 35 40 45 48​

Mathematics
1 answer:
poizon [28]3 years ago
8 0

Answer:

To calculate the standard deviation of those numbers:

Work out the Mean (the simple average of the numbers)

Then for each number: subtract the Mean and square the result.

Then work out the mean of those squared differences.

Take the square root of that and we are done!

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What is the answer to y divided by 2 = 17
bija089 [108]
The answer is Y=34
Because 34/17 is 34
7 0
3 years ago
Read 2 more answers
What is the 5th term of an arithmetic sequence of 20 terms with first and last terms of 2 and 59, respectively
Verizon [17]

Answer:

14

Step-by-step explanation:

aₙ = a₁ + (n-1)*d

59 = 2 + (20-1) * d

59 = 2 + 19d

19d = 59-2 = 57

d = 3

5th term: a₅ = 2 + 4 * 3 = 14

8 0
3 years ago
What is the value of y? <br> A. 88<br> B. 46<br> C. 44<br> D. 92
Marrrta [24]
It is C) becausethe outer angle is the sum of the sum inner angles, 88 = 2y




6 0
4 years ago
Can someone help me?It's urgent and thank you!
Svetach [21]

Answer:

575.71

Step-by-step explanation:

Year 1: 960 x .88 (100%-12%)=844.80

Year 2: 844.80 x .88 =743.424

Year 3: 743.424x.88=654.21

Year 4: 654.21 x .88=575.71

5 0
3 years ago
Can someone please help on this question
Gemiola [76]

Answer:

The volume of the regular tetrahedron is 283.5 m³

Step-by-step explanation:

The formula of the volume of the regular tetrahedron is V = \frac{1}{3} A h, where

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

∵ The area of the base of a regular tetrahedron is 98.9 m²

∴ A = 98.9 m²

∵ The height of it is 8.6 m

∴ h = 8.6 m

→ Substitute them in the formula of the volume above

∵ V = \frac{1}{3} (98.9)(8.6)

∴ V = 283.5133333 m³

→ Round it to the nearest tenth of a cubic meters

∴ V = 283.5 m³

∴ The volume of the regular tetrahedron is 283.5 m³

8 0
3 years ago
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