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castortr0y [4]
3 years ago
13

I NEED HELP PLEASE!!

Mathematics
1 answer:
Mrac [35]3 years ago
6 0

Answer:3.38

Step-by-step explanation:

Count, N: 5

Sum, Σx: 18

Mean, μ: 3.6

Variance, σ2:  11.44

Steps

(10 - 3.6)2 + ... + (2 - 3.6)2

5

=  

57.2

5

=  11.44

σ =  √11.44

=  3.38

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FG ∥ CB, A ∈ FG, D ∈ AB, E ∈ AC
andrey2020 [161]

Answer:

The value of x is 31^{\circ}.

Step-by-step explanation:

Please look at the figure attached to get more clear solution.

We have given:

FG||CB

And the line that cut the parallel line is transversal so, here BA is transversal

And alternate interior angles on transverse line are equal

So, ∠1=∠4

And ∠4=28^{\circ}

Hence,  ∠1=∠4=28^{\circ}

And On FG the sum of angles will be 180^{\circ}

∠3+∠2+∠1=180^{\circ}

90^{\circ}+∠2+28^{\circ}=180^{\circ}

Hence, ∠2=62^{\circ}

Now, we know that the sum of interior angles is equal to the exterior angle:

Therefore, ∠2+∠5=∠6+∠7

62^{\circ}+3x=x+4x

On simplification we get:

2x=62^{\circ}

x=31^{\circ}

Hence, the value of x is 31^{\circ}.

3 0
3 years ago
John's dog Fido is tied to a post in his backyard. Fido's leash is 8.5 feet long. Determine how much circular roaming area Fido
ira [324]

Answer:

227 ft^2

Step-by-step explanation:

Here, we are tasked with calculating the roaming area that Fido has

Calculating this is same as calculating the area of circle that has a radius which is equal to the length of the leash

Mathematically, the area would be

A = π * r^2

A = 3.14 * 8.5^2

A = 226.865 ft^2

To the nearest square foot, this is 227 ft^2

3 0
3 years ago
What is the answer to <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bz-5%7D%7Bz%2B1%7D%3D%5Cfrac%7B3%7D%7B2%7D" id="TexFormula1" ti
rusak2 [61]
The correct answer is Z=-13
7 0
2 years ago
Read 2 more answers
I need help please can’t find it
nordsb [41]

Answer:

Step-by-step explanation:

log(7)6+log(7)2^3

log(7)6+log(7)8

log(7)(8*6)

log(7)48 = > D is the correct answer.

8 0
2 years ago
a jacket cost 4 times as much as a shirt. if the total cost of the jacket and shirt is $280, how much does the shirt cost ------
Vedmedyk [2.9K]

The answer I got was A.)$56.

Hope this helps!<3

Comment if you need help on how I got that answer!

3 0
2 years ago
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