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Rina8888 [55]
3 years ago
13

jake reads for 20 minutes after school. he reads x more minutes after dinner. enter an equation that represents the total number

of minutes, y, that jake read
Mathematics
1 answer:
Nesterboy [21]3 years ago
4 0

Answer: 20 + x

Why you ask? Well its just plain logic if you read it thoroughly

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A population of monkeys' tail lengths is normally distributed with a mean of 25 cm with a standard deviation of 8 cm. I am prepa
Crank

Answer:

<em>The probability that the mean of my sample will be between 24 and 25 cm</em>

<em>P(24 ≤X⁻≤25) = 0.4772</em>

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

<em>Given mean of the Population  'μ'= 25c.m</em>

<em>Given standard deviation of the Population 'σ' = 8c.m</em>

<em>Given sample size 'n' = 256</em>

<em>Let X₁ = 24</em>

<em></em>Z_{1}  = \frac{x_{1}-mean }{\frac{S.D}{\sqrt{n} } } = \frac{24-25}{\frac{8}{\sqrt{256} } } =  -2<em></em>

<em>Let X₂ = 25</em>

<em></em>Z_{2}  = \frac{x_{2}-mean }{\frac{S.D}{\sqrt{n} } } = \frac{25-25}{\frac{8}{\sqrt{256} } } = 0<em></em>

<u><em>Step(ii)</em></u><em>:-</em>

<em>The probability that the mean of my sample will be between 24 and 25 cm</em>

<em>P(24 ≤X⁻≤25) = P(-2≤ Z ≤0)</em>

                     = P( Z≤0) - P(Z≤-2)

                     = 0.5 + A(0) - (0.5- A(-2))

                     = A(0) + A(2)        ( ∵A(-2) =A(2)

                     = 0.000+ 0.4772

                     = 0.4772

<u><em>Final answer</em></u>:-

<em>The probability that the mean of my sample will be between 24 and 25 cm</em>

<em>P(24 ≤X⁻≤25) = 0.4772</em>

                     

4 0
3 years ago
Pls help!
pashok25 [27]

Answer:

No

Step-by-step explanation:

bc it will be the same exact topping just like 2 more things of the topping

3 0
2 years ago
Simplify:<br> 4 x 32 - 3+5x2 = <br> A. 33<br> B. 43<br> C. 36<br> D. 58<br> E. 34
NeX [460]
I got 155‍♀️ I don’t know cause I did PEMDAS and got 155
3 0
3 years ago
Read 2 more answers
Jeremy drew a polygon with four right angles and four sides with the same length. Name all the polygons that he could have drawn
sergejj [24]
Square. 

A square is a rectangle, so rectangle.

A rectangle is a parallelogram, so parallelogram.

Equilateral.

Also Rhombus.

(I think there may be others but these are the few I know)
8 0
3 years ago
If represents 14 people, how many people would be represented by ? 21 people 14 people 7 people 28 people
Usimov [2.4K]

Answer:

Answer is 28

Step-by-step explanation:

14+14=28

4 0
3 years ago
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