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nekit [7.7K]
3 years ago
15

Hi can someone help me understand how to work this problem out? I'll mark brainliest. Thanks:)

Mathematics
1 answer:
Ierofanga [76]3 years ago
8 0

Answer:

0.73001

Step-by-step explanation:

1 month = 730.01 hours

730.01 * $0.001

= 0.73001

Approximately 0.73 or 0.7.

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In a recent test, you scored 1.0 standard deviations above the average score attained, and the scores are normally distributed.
sesenic [268]

Answer:

97.75 %

Step-by-step explanation:

You score 1 standard deviation above the mean

a) we have from left tail up to the mean 50 % of all values

b) We have in the interval  [ μ  -  σ  ;  μ  +  σ ] 95.5 % of all possible values, if we divide that 95.5 by 2 we get 47.75 %,  the part of the values that correspond to the right, then in order to get the  % of students scored lower we add

50  +  47.75   = 97.75 %

So you can say that the porcentage of students that scored lower than you is 97.75 %

3 0
3 years ago
Expand (x-y)^5 using pascal’s triangle
mina [271]

Hello from MrBillDoesMath!

 

Answer:

x^5 - 5 x^4 y + 10 x^3 y^2 - 10 x^2 y^3 + 5 x y^4 - y^5


Discussion:

Pascal's triangle looks like this (up to 6 rows)

    1  

   1 1  

  1 2 1  

 1 3 3 1  

1 4 6 4 1  

1  5 10 10 5 1


The last row contains the constant multipliers in the equation. The terms in the expansion alternate in sign.


Thank you,

MrB

7 0
3 years ago
Reuben bought a bike from an online sports store. The bike was shipped to his home in Sterling, Alberta from Provo, Utah. The li
Nata [24]

Answer:

CAD 708.76

Step-by-step explanation:

Multiply US$688 by the conversion factor 1.02 CAD / US$1:

The result is CAD 708.76

8 0
2 years ago
Which is the better buy
Tasya [4]
$12 for 3 pies = $4 for 1 pie
$10 for 2 pies = $5 for 1 pie
store A is the better buy
3 0
3 years ago
HELP ME PLEASE HELP HELP HELP WALLAHI HELP
enyata [817]

9514 1404 393

Answer:

  48

Step-by-step explanation:

The Pythagorean theorem tells you the square of the hypotenuse (longest side) is the sum of the squares of the other two sides. Let x represent the unknown side.

  73² = x² +55²

  5329 = x² +3025 . . . evaluate the squares

  2304 = x² . . . . . . . . . subtract 3025 from both sides

  48 = x . . . . . . . . . . . . take the square root of both sides

The exact length of the third side is 48.

8 0
2 years ago
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