6. Check whether the following numbers are perfect square or not, by expressing each as the sum of
2 answers:
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Answer:
62.5%
Step-by-step explanation:
To find percentage of win, we simply need to find the number of games won and divide it by the total number of games played. Then we will multiply that answer by 100 (to get percentage).
So,
Number of games won = 15
Total number of games = 15 + 9 = 24
Percentage of Win =
Answer is 62.5%
Answer:
{ - 2, 10 }
Step-by-step explanation:
Given
x² - 8x = 20
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 4)x + 16 = 20 + 16, that is
(x - 4)² = 36 ( take the square root of both sides )
x - 4 = ± = ± 6 ( add 4 to both sides )
x = 4 ± 6
Thus
x = 4 - 6 = - 2
x = 4 + 6 = 10