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3 years ago

_+_+_=30

1 answer:

4 0

(3*5-11)+(3*13-15)+(1*11-9)= 30
(15-11) + (39-15) + (11-9 ) = 30
4+24+2= 30
30 = 30

So, in this only the numbers given above is used , no gaps are left and I didn't even use 0.
So, i guess my answer is right.

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Answer:

The length of this rectangle is 8m.

Step-by-step explanation:

The problem states that the perimeter of a rectangle is twice the sum of its length and it’s width. So

$P = 2*l + 2*w$

The problem also states that the perimeter is 22 meters. So:

$P = 22$

$2l + 2w = 22$ .

Also, it states that I is the length and it is 2 meters more then twice it’s width. So

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Step-by-step explanation:

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3 years ago

The amount of time people spend exercising in a given week follows a normal distribution with a mean of 3.8 hours per week and a

Travka [436]

Answer:

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$P(z$

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Step-by-step explanation:

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Part i and iii

In the figure attached part a we have the illustration for the area required for the probability of less than 2 hours and in b the illustration for the probability that X would be between 2 and 4

Part ii

We are interested on this probability:

$P(X$