5<em>x</em>² - 7<em>x</em> + 2 = 0
5(<em>x</em>² - 7/5 <em>x</em>) + 2 = 0
5(<em>x</em>² - 7/5 <em>x</em> + 49/100 - 49/100) + 2 = 0
5(<em>x</em>² - 2 • 7/10 <em>x</em> + (7/10)²) - 49/20 + 2 = 0
5(<em>x</em> - 7/10)² - 9/20 = 0
5(<em>x</em> - 7/10)² = 9/20
(<em>x</em> - 7/10)² = 9/100
<em>x</em> - 7/10 = ± √(9/100)
<em>x</em> - 7/10 = ± 3/10
<em>x</em> = 7/10 ± 3/10
<em>x</em> = 10/10 = 1 or <em>x</em> = 4/10 = 2/5
Answer:
1670
Step-by-step explanation:
Mas has 839 balls
37 are taken away
839 -37 = 802
Then he gets 868 balls
802+868 =1670
He now has 1670 balls
Answer:
It's D - There is a constant third difference of 24.
Step-by-step explanation:
Answer:
Isn't this supposed to be a science question
Answer:
Base=36
Height=18
Step-by-step explanation:
To work this out you would first multiply 12 by 3, which gives you 36. Then you would multiply 6 by 3, which gives you 18.
1) Multiply 12 by 3.
2) Multiply 6 by 3.
3) Base=36
Height=18
