Answer:
A. square root -4
Step-by-step explanation:
The answer is A because the square root of -4 is 2i which is an imaginary number.
-The square root of -4 is 2i (an imaginary number)
-The square root of 16 is 4
-The square root of 1 is 1
-The square root of 13 is ≈ 3.606
Answer:
Step-by-step explanation:
<u>Factoring</u>
Binomial factoring is a common task when solving a great variety of math problems.
One of the best-known formula that helps us to factor a binomial is:
It can easily be identified because the expression is the difference between two perfect squares.
The expression
can be factored with the formula above since it's the difference of two squares:
The expression is factored as follows:
True, because they're showing you the percentage.
Answer:
C. 1
Step-by-step explanation:
You are asked for the y-intercept of the piecewise-defined function f(x). That will be the value of f(0).
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<h3>function definition</h3>
We assume you intend the function definition to be ...
<h3>y-intercept</h3>
The first step in evaluating a piecewise-defined function is to identify the applicable domain and corresponding function definition. The value x=0 is included in the domain -2 ≤ x < 3, so the second part of the function applies.
f(0) = -0 +1 = 1
The y-intercept of function f is 1.
_____
Attached is a graph of the function showing its y-intercept.
A(x)=x^-14x+49
A(x)=(x-7)^2+2401
A(x)-2401=(x-7)^2