Answer:
7.8 / 27.7 = 8 / 28 = 3.5
Step-by-step explanation:
7.8 / 27.7 = 8 / 28 = 3.5
20.6 / 70.19 = 21 / 70.2 = 3.3
5.9 / 21.96 = 6 / 22 = 3.6
15.47 / 56.4 = 15.5 / 56.4 = 3.6
Answer:
4(x - 5)^2 - 18.
Step-by-step explanation:
For a move 5 to the right f(x) ----> f(x - 5).
For a move of 2 down f(x - 5) ----> f(x - 5) - 2.
Hey there!!!
Remember :
===> n⁻ˣ is equal to 1 / nˣ
In the question, it is stated n as 6 and x is 3
====> 6⁻³
... 1 / 6³
= 1 / 216
Hope my answer helps!
Answer:
x = -3
y = -11
Step-by-step explanation:
You want to substitute one of the y's
3x - 2 = 2x - 5
+2 +2
3x = 2x - 3
-2x -2x
x = -3
now that you have x, you need to substitute the x to get y
y = 3x - 2
y = 3(-3) - 2
y = -9 - 2
y = -11
or
y=2x-5
y = 2(-3) - 5
y = -6 - 5
y = -11
*they will both be the same no matter which equation you use
Hope this helped!
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 ![\pm 2i](https://tex.z-dn.net/?f=%5Cpm%202i)
Therefore,
For f(x) with roots -7 and +7 and
we have,
![f(x)=a(x+7)(x-7)(x-2i)(x+2i)](https://tex.z-dn.net/?f=f%28x%29%3Da%28x%2B7%29%28x-7%29%28x-2i%29%28x%2B2i%29)
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.