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NeX [460]
2 years ago
15

the amount of money spent weekly on cleaning maintenance and repairs at a large restaurant was observed over a long period of ti

me to be approximately normally distributed with the mean of $609 and standard deviation of $46
Mathematics
1 answer:
miv72 [106K]2 years ago
4 0

So P(-0.7537 < z < 1.3190) = 0.9063 - 0.2254 = 0.6809

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Will mark brainist to the first person who comments!
Galina-37 [17]

Answer:

TRY B

Step-by-step explanation:

TRY B

5 0
2 years ago
What can you times by 9 to 1296 <br> What can you multiply by 9 to get 1296
ozzi

Answer:

144, would be your answer

Step-by-step explanation: Multiply 144 by 9 and you get 1296.

7 0
3 years ago
Oil consumption in China grew exponentially from 8.938 million barrels per day in 2010 to 10.480 million barrels per day in 2013
Afina-wow [57]

Let the year represents x axis and consumption represents y axis.

Since 2010 is the initial year, x=0

and 2013 is third year , so x=3

Co-ordinates are (0,8.938)(3,10.480)

Exponential formula is y=ab^{x}

Putting the value of x in the above formula from 1st coordinate,

8.938=ab^{0}

As b^{0} = 1

this gives a= 8.938

Now using the 2nd coordinate

10.480=ab^{3}

putting the value of a in it we have

10.480=8.938b^{3}

taking cube roots on both sides we get

b= 1.05448

Now putting the values of a and b in the exponential formula-

y=8.938(1.05448)^{x}

In the year 2028, x=28

so,

y=8.938(1.05448)^{28}

y= 39.474

Hence oil consumption per day in 2028 will be 39.474 million barrels.

5 0
3 years ago
Read 2 more answers
2b + 5 = 9 what is B
Elodia [21]

Answer:

b = 2

Step-by-step explanation:

Given

2b + 5 = 9 ( subtract 5 from both sides )

2b = 4 ( divide both sides by 2 )

b = 2

5 0
3 years ago
Read 2 more answers
Ken predicts that the average temperature will be −5°C in December. If he predicts the temperature will rise 6°C in January and
ipn [44]

Answer:

The equations [(-5) + (-3)] + 6 = -2 and [6 + (-5)] + (-3) = -2  he can use to find the sum of the temperatures for those months ⇒ 3rd , 5th

Step-by-step explanation:

i took the assignment

7 0
3 years ago
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