If an object maps onto itself after being rotated 180 degrees or less about a line, it has
1 answer:
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Answer:
x = 0.27
Step-by-step explanation:
Given:
x÷0.4=2 1/9 ÷3 1/6
To Find:
x = ?
Solution:
First we will see what is
Now the final equation is
x = 0.27
Answer:
The roots are real and distinct.
Step-by-step explanation:
Given the following equation:
In this problem, a = 1, b = k and c = -k - 2
The discriminant is b² - 4ac, and for the roots to be real and distinct, it must be at least or greater than 0.
We get,
(k)²- 4(1)(-k - 2) = 1 - 4(-k - 2)
= k² + 4k + 8
Let's check:
At k = -2,
At k = 0,
At k = -100,
Therefore, we can conclude that for all values of k, the roots are real and distinct.
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