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Andrei [34K]
3 years ago
7

Please help asap!!!!

Mathematics
1 answer:
Travka [436]3 years ago
3 0

Answer:

Step-by-step explanation:

just add them all together . and the 2 beside the cm just multiply the answer by two .

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The probability of drawing an ace from a deck of cards is 1/13. If you drew one card at a time (and put the card back each time)
Digiron [165]

Answer:

31 aces

Step-by-step explanation:

To find the number of aces you would expect, take the probability of an aces and multiply by the number of tries

1/13 * 400 =30.76923

Rounding up, approximately 31 aces

4 0
4 years ago
The owner of a fish market has an assistant who has determined that the weights of catfish are normally​ distributed, with mean
LiRa [457]

Answer:

P(X\geq 3.4)=0.0228

Step-by-step explanation:

Given the mean is 3.2, standard deviation is 0.8 and the sample size is 64.

-We calculate the  probability of a mean of 3.4 as follows:

#First determine the z-value:

z=\frac{\bar X -\mu}{\sigma/\sqrt{n}}\\\\=\frac{3.4-3.2}{0.8/\sqrt{64}}\\\\=2.000

#We then determine the corresponding probability on the z tables:

Z(X\geq 3.4)=1-P(X

Hence, the probability of obtaining a sample mean this large or​ larger is 0.0228

8 0
3 years ago
The triangle below is isosceles (two congruent sides). Find the value for x. one side say x + 3.8 and the other says 16 and then
Ugo [173]
The <span>isosceles triangle has two congruent sides

Their lengths are (</span> x + 3.8 ) and  <span>16

Equate them :

x+3.8=16


Solve for x:
3=16-3.8=12.2
</span>
4 0
3 years ago
(10 points) Suppose you are rolling a fair die 600 times independently. Let X count the number of sixes that appear. (a) What ty
andrezito [222]

Answer:

let me think

Step-by-step explanation:

i want free points

7 0
3 years ago
The length and breadth of a rectangular park 25m and 12m. find the distance covered by a boy who takes 4 rounds of the garderean
kodGreya [7K]

Answer:296 m

I’m assuming “breadth” is width and garderean is just the park.

(25+25+12+12) times 4.

A is never defined

5 0
2 years ago
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