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3 years ago

Put the brackets in to make this equation acurate 9+7x3÷10-1=2

Mathematics

2 answers:

liberstina [14]3 years ago

6 0

Question is wrong.......any bracket can not solve this problem

Amanda [17]3 years ago

4 0

The question has to be wrong i tried putting brackets in for each and i never came out with 2

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3 years ago

The histogram shows the speeds of downhill skiers during a competition. Estimate the mean of the data set displayed in the histo

Ostrovityanka [42]

Answer:

≈50.6

Step-by-step explanation:

Not sure what precision level this problem is looking for, but for right-skewed distributions, we know that the mean is going to be pulled right and therefore the mean should be larger than the median. To a high confidence level, the mean should fall between 50 and 59, or in the third column.

If a single estimation is wanted, assume the values inside each column are uniformly distributed:

$\displaystyle\\\widehat{\mu}=\frac{34.5\cdot 4+...+74.5\cdot 2}{4+9+4+4+2}\approx \boxed{50.6}$

8 0

3 years ago

Example 2

s344n2d4d5 [400]

<span>3.the function is f^2(4) = f(3) = 1/2 x 1 = 2.5
i believe thats right still working on the others</span>

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3 years ago