Answer: 0.37
Step-by-step explanation:
Number of oranges sold = 67
Number of apples sold = 85
Number of lemons sold = 28
Total number of fruits sold = 67 + 85 + 28 = 180
The probability that the next customer will buy an orange will be:
= Number of oranges sold / Total fruits sold
= 67/180
= 0.37
5x+2x−6=−2x+2
7x−6=−2x+2
7x=−2x+2+6
7x=−2x+8
7x+2x=8
9x=8
x=8/9
Hope this helps, have a blessed day! :-)
Note the binomial expansion,
(<em>a</em> + 1/<em>a</em>)³ = <em>a</em> ³ + 3<em>a</em> + 3/<em>a</em> + 1/<em>a</em> ³
so
<em>a</em> ³ + 1/<em>a</em> ³ = (<em>a</em> + 1/<em>a</em>)³ - 3 (<em>a</em> + 1/<em>a</em>)
Similarly,
(<em>a</em> + 1/<em>a</em>)² = <em>a</em> ² + 2 + 1/<em>a</em> ²
We're given <em>a</em> ² + 1/<em>a</em> ² = 79, so
(<em>a</em> + 1/<em>a</em>)² - 2 = 79
(<em>a</em> + 1/<em>a</em>)² = 81
<em>a</em> + 1/<em>a</em> = ±9
but <em>a</em> > 0, so we ignore the negative solution.
Then
<em>a</em> ³ + 1/<em>a</em> ³ = 9³ - 3×9 = 702
Answer:
36i^2 i think that's right
