The discriminant is the bit under the radical, the
.
Because it's under a radical, it's what tells you how many and what kind of solutions you have (two real, one real, or two imaginary/complex solutions).
Does that answer your question? Or do you need an example?
Suppose you had the equation
, then you'd have:
,
and ![c=1](https://tex.z-dn.net/?f=c%3D1)
You'd plug those values into
to see if the discriminant was positive, zero, or negative:
![\begin{aligned}b^2-4ac &= (-7)^2-4(3)(1) \\&= 49 - 12 \\&= 37\endaligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7Db%5E2-4ac%20%26%3D%20%28-7%29%5E2-4%283%29%281%29%20%5C%5C%26%3D%2049%20-%2012%20%5C%5C%26%3D%2037%5Cendaligned%7D)
Since that is 37 (a postiive number), you'd have two real solutions.
Answer:
First, our answer is 18 yards long.
Step-by-step explanation:
It is 18 yards long because first, we have 9, the length of Jamie's car. Joey's car length is 27 feet. Then, since 1 foot converted is 0.333333...., it is very hard to convert so i turn it in to 9 foot converted into 3 yards. Then, both sides multiply by 3 so 27 foot equals to 9 yards. 9 yards+9 yards equals 18 yards.
Hope it helps Hailey!
Pls mark it brainliest.
Thx!
2/3 is another Fraction and also is 4/5
Hope This Helped
The best thing to do is either to find a common denominator or convert them to decimals.
I will find a common denominator.
A common denominator of 3 and 5 is 15.
You multiply the first fraction by 5
2*5= 10
This then becomes 10/15
You then multiply the second by 3.
4*3= 12
Therefore, this becomes 12/15
As the second of these fractions is larger, this means that 4/5 is larger.
The alternative method is to put them into decimals, in which case 2/3= 0.66 and 4/5= 0.8
Hope this helps :)