Answer:
To kilos? About 132.2. To dollars? Google the exchange.
Discriminant = b^2 - 4ac, where a, b and c come from the form of the quadratic equation as ax^2 + bx + c
Discriminant = (4)^2 - 4(1)(5)
= 16 - 20
= -4
-4 < 0, therefor there are no roots
(If the discriminant = 0, then there is one root
If the discriminant > 0, there are two roots, and if it is a perfect square (eg. 4, 9, 16, etc.) then there are two rational roots
If the discriminant < 0, there are no roots)
11. 1/81
12. 1/512
13. 1/81
14. 1/125
17. 1/72
18. 189/625
Answer:
Step-by-step explanation:
The graph of a function on coordinate axes (x- and y- axes) provides a good, fast, visual feel for the behavior of the function as the independent variable (x) increases.
I graphed the function.
Remember, f(x)= y.
y= -2x^2-16x-34
The vertex was at point (-4,-2)
I hope this helps!
~kaikers
