Answer:
A) x<-1
Step-by-step explanation:
As the circle is not filled in, we know that the inequality must be > or <.
As the line is to the left of -1 (or lower than it). We know that x must be less than -1
Answer:
Step-by-step explanation:
<u><em>The correct question is</em></u>
If b = 9 and c = 13, what is the measure of ∠A? (round to the nearest tenth of a degree)
The picture in the attached figure
we know that
In the right triangle ABC
---> by CAH (adjacent side divided by the hypotenuse)
substitute the given values
using a calculator
Answer:
If the roots of an equation are x = -1 ± i, it means that the factorized form of that equation is: (x + 1 + i)(x+ 1 - i) = 0.
Using the distributive property, we have:
(x + 1 + i)(x+ 1 - i) = x^2 + x - ix + x + 1 - i + ix + i + 1
Combining like-terms and simplifying:
⇒ x^2 + x + x + 1 + 1 = x^2 + 2x + 2 = 0
Therefore, the stament is correct. If the roots of an equation are x = -1 ± i, then the equation is: x^2 + 2x + 2 = 0.
