Answer:
300
Step-by-step explanation:
Answer:
80 square yards
Step-by-step explanation:
so you have to divide 20 into 100 to see how much each sheep gets. Each sheep gets 5 square yards. Then you just multiply how much each sheep gets by 5 and get 80 square yards.
It is convenient to follow directions. Create a chart with activities as column headings. Since the data is divided according to gender, you would put gender on the row headings. Fill in the given numbers (black), and make the totals come out (blue).
The numbers in the row total column are exactly that: the total of the numbers in the row. (A spreadsheet can do the actual addition or subtraction for you.)
Our discriminant is 0 so,
has one real root.
Option C is correct.
Step-by-step explanation:
we need to find the discriminant and the number of real roots for the following equation:
![4x^2 + 12x + 9 = 0](https://tex.z-dn.net/?f=4x%5E2%20%2B%2012x%20%2B%209%20%3D%200)
The discriminant is found by using square root part of quadratic formula:
![b^2-4ac](https://tex.z-dn.net/?f=b%5E2-4ac)
where b =12, a=4 and c=9
Putting values:
![=b^2-4ac\\=(12)^2-4(4)(9)\\=144-144\\=0](https://tex.z-dn.net/?f=%3Db%5E2-4ac%5C%5C%3D%2812%29%5E2-4%284%29%289%29%5C%5C%3D144-144%5C%5C%3D0)
To find out the number of real roots using discriminant we have following rules:
- if discriminant b^2-4ac >0 then 2 real roots
- if discriminant b^2-4ac =0 then 1 real root
- if discriminant b^2-4ac <0 then no real roots
Since our discriminant b^2-4ac is 0 so,
has one real root.
Option C is correct.
Keywords: discriminant
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