3 years ago

If a number is decreased by its square the result is 2/9. find the number

1 answer:

6 0

Let x be the number.
x-x²=2/9, so 9x-9x²=2 or 9x²-9x+2=0=(3x-2)(3x-1). Therefore x=2/3 or 1/3.
Check: 2/3-4/9=6/9-4/9=2/9 and 1/3-1/9=3/9-1/9=2/9.

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solniwko [45]

Answer:

Median = 13

Step-by-step explanation:

We are given the following data:

16, 15, 13, 12, 17, 14, 11, 9, 11

Formula:

$Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}$

Sorted data: 9, 11, 11, 12, 13, 14, 15, 16, 17

Median =

$=\dfrac{9+1}{2}^{th} = 5^{th}\text{ term} = 13$

Thus, the median of the given data is 13.

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3 years ago

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3 years ago

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ruslelena [56]

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Step-by-step explanation:

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3 years ago

$4 is what percent of $50

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3 years ago

There are 6 squares and 2 circles. What is the simplest ratio of circles to total shapes?

Sunny_sXe [5.5K]

Add to find the total number of shapes.

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Divide 2 to both sides.

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Therefore, the answer is 1:4

Best of Luck!

4 0

3 years ago

Read 2 more answers