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3 years ago

What is 0.2604166 simplified??

Mathematics

2 answers:

sesenic [268]3 years ago

8 0

Answer:

Your answer is 26

Step-by-step explanation:

I hope that this helps, have a great rest of your day. ;D

matrenka [14]3 years ago

5 0

Answer:

it is 21/56

Step-by-step explanation:

i don't know i am just guessing!

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Which of the following choices is the standard deviation of the sample shown

Mama L [17]

The standard deviation of the given sample is √2. So, option A is correct.

<h3>How to calculate the standard deviation of the sample?</h3>

The standard deviation of the sample is calculated by using the formula,

σ² = ∑(x - μ)²/N

Where,

σ - standard deviation

x - sample

μ - mean of the sample

N - the size of the sample

<h3>Calculation:</h3>

The given sample is {19, 20, 21, 22, 23}

where N = 5

Finding the mean:

mean μ = (19 + 20 + 21 + 22 + 23)/5 = 105/5 = 21

So,

∑(x - μ)² = (19 - 21)² + (20 - 21)² + (21 - 21)² + (22 - 21)² + (23 - 21)²

= (-2)² + (-1)² + 0 + (1)² + (2)²

= 4 + 1 + 0 + 1 + 4

= 10

Finding the standard deviation:

we have μ = 21, N = 5, and ∑(x - μ)² = 10

Then,

σ² = ∑(x - μ)²/N

= 10/5

= 2

⇒ σ = √2

Thus, the value of the standard deviation of the given sample is √2.

Learn more about the standard deviation here:

brainly.com/question/9814755

#SPJ1

7 0

2 years ago

Triangle DEF is shown below.

just olya [345]

Answer:

A triangle similar to DEF will have an angle that measures 45 degrees, an angle that measures 65 degrees, and an angle that measures 70 degrees

Step-by-step explanation:

Given

See attachment for complete question

Required

Angles of a triangle similar to $\triangle DE F$

First, calculate the angle at D

$D + 110^o = 180^o$ ---- angle on a straight line

Collect like terms

$D = 180^o - 110^o$

$D = 70^o$

Next, calculate the angle at F

$F + 135^o = 180^o$ ---- angle on a straight line

Collect like terms

$F = 180^o -135^o$

$F = 45^o$

Lastly, the angle at E

$D + E + F = 180^o$ --- angles in a triangle

Make E the subject

$E = 180^o - D - F$

$E = 180^o - 70^o - 45^o$

$E = 65^o$

<em>A triangle similar to </em> $\triangle DE F$ <em> will have 45, 70 and 65 degrees as its angles</em>

6 0

3 years ago

Please help!!! Will give brainly!! 50 points

andreyandreev [35.5K]

You can drag in the first empty box ∡3 and get ∡2≅∡3.

In the second box you can drag '' definition of angle bisector ''.

In the third empy box you can drag ∡1 and get ∡1≅∡3.

At last empy box you can drag ''transitive property of congruence''

Good luck!!!

5 0

4 years ago

Read 2 more answers

I need help with this.

vodka [1.7K]

Answer : HF ≈ 23.2 ft

Explanation :
Using the sine ratio in the right triangle.
sin75° = = =
Multiply both sides by 24
24 × sin75° = HF , thus
HF ≈ 23.2 ft ( to the nearest tenth )

6 0

3 years ago

I need help with my math worksheet

Vsevolod [243]

Answer:

Below is a reference sheet.

8 0

3 years ago