Answer:
Step-by-step explanation:
You need to use the quadratic equation
x = ![\frac{-b +/- \sqrt{b^2 - 4ac} }{2a}](https://tex.z-dn.net/?f=%5Cfrac%7B-b%20%2B%2F-%20%5Csqrt%7Bb%5E2%20-%204ac%7D%20%7D%7B2a%7D)
Givens
x = ![\frac{5 +/- \sqrt{5^2 - 4a*1*3} }{2} \\](https://tex.z-dn.net/?f=%5Cfrac%7B5%20%2B%2F-%20%5Csqrt%7B5%5E2%20-%204a%2A1%2A3%7D%20%7D%7B2%7D%20%5C%5C)
x =( 5 +/- sqrt(25 - 12) ) / 2
x = (5 +/- sqrt(13) )/2
x = (5 + sqrt(13) / 2
x = 4.303 rounded
x = (5 - sqrt(13) ) /2
x = .6972
Answer:
The ratio between won and lost is ![\frac{7}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B4%7D)
Step-by-step explanation:
<u><em>The question in English is</em></u>
A table tennis team won 21 games and lost 12 games, what is the ratio between won and lost?
Let
x ------> the number of games won
y -----> the number of games lost
we have
![x=21\ games](https://tex.z-dn.net/?f=x%3D21%5C%20games)
![y=12\ games](https://tex.z-dn.net/?f=y%3D12%5C%20games)
we know that
To find the ratio divide the number of games won by the number of games lost
so
![\frac{x}{y}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7By%7D)
substitute the values
![\frac{21}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B21%7D%7B12%7D)
Simplify
![\frac{7}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B4%7D)
Answer:
Slope is 5 and y intersept is 5over6
Step-by-step explanation:
Answer:
52.4
Step-by-step explanation:
40 hundredths as a decimal is 40/100 which is .40.
The "fifty two" is a whole number which is in front of the ".40" which makes 52.4 or 52.40.