25% of 2$ is 50cents, so the new price was 1.50$
Answer:
The answer is one.
Step-by-step explanation:
Answer:
After a dilation, the pre-image and image have the same shape but not the same size. In a dilation, the sides of the pre-image and the corresponding sides of the image are proportional.
Step-by-step explanation:
Answer:
2/3
Step-by-step explanation:
The slope of the graph is positive.
Slope = rise / run
<em>Hope this helps</em>
<em>-Amelia The Unknown</em>
Option B
Trevor isn't correct because -2i must also be a root
<em><u>Solution:</u></em>
For the polynomial with roots -7, 2i and 7 their roots can be,
1. ) Real roots
2.) Imaginary roots
The real roots are: -7 and +7
The imaginary root given is: 2i
The imaginary roots come from the square root. So they will be in form of
Therefore,
For f(x) with roots -7 and +7 and we have,
Fundamental Theorem of Algebra states that a polynomial will have exactly as many roots as its degree (the degree is the highest exponent of the polynomial).
So for f(x) with 4 roots, degree of f(x) is 4
So option B is correct. Trevor is not correct because –2i must also be a root.