Answer: .3 or 3/10
Explanation: The probability that her first answer is correct is 2/5. Since she got the first guess correct, now there is only 1 correct answer out of 4. There is a 3/4 chance she will get the next problem wrong
So: 2/5 x 3/4 = .3
Answer:Solving the quadratic equation, the coordinates of the roots are: (-1,0) and (-3,0)
The quadratic equation given is:
Which has coefficients .
Now, we find the solutions:
The coordinates of the roots are and , as a root is a value of x when y = 0, thus, in the problem, (-1,0) and (-3,0).
A similar problem is given at brainly.com/question/13729358
Explanation:
The Complex nth Roots Theorem with any nonzero complex number has exactly n ∈ N distinct nth roots.
<h3>
What is a non-zero complex number?</h3>
This is the quantity which does not equal zero is said to be nonzero. A real nonzero number must be either positive or negative, and a complex nonzero number can have either real or imaginary part nonzero.
The roots lie on a circle of radius centered at the origin and spaced out evenly by angles of 2π/n.
Learn more about the <em>nth root</em> here:
brainly.com/question/1581238
According to the research, Dr. Smithe should use naturalistic observation to investigate aggressive preschoolers.
<h3>What are naturalistic observations?</h3>
It is a method used in research and whose basis is to observe the subjects in the place where they live, without the researcher being disturbed in the least.
This allows detailing the behavior of the subjects that we record is what, in fact, the behavior that should happen in their habitat, under those conditions, obtaining real results, without any type of alteration.
Therefore, we can conclude that according to the research, Dr. Smithe should use naturalistic observation to investigate aggressive preschoolers.
Learn more about naturalistic observation here: brainly.com/question/8187021
#SPJ1
The section being described here is called;
<em><u>System Components</u></em><em><u>.</u></em><em><u> </u></em>
The correct answer here is a system component. This is because a system component is a process, program or another part of a computer's operating system that aids in management of different areas of the computer.
Now, although this system component is similar to a computer program, it does not mean that an end-user can directly use it to interact when using a computer.
Read more at; brainly.com/question/18802924
