62.5 is the answer to your question
Check the picture, notice the domain in red.
recall that the domain is the values for the x-coordinate, whilst the range is the values for the y-coordinate.
F(x) = x^4 + 81x^2
f(x) = x^2*x^2 + x^2*81
f(x) = x^2*(x^2 + 81) ... see note 1
f(x) = x^2*(x + 9i)(x - 9i) ... see note 2
note 1: if you haven't learned about complex or imaginary numbers yet, then you would stop at the line with "note 1" on it
note 2: you would stop here if you have learned about complex or imaginary numbers and you want to factor over the complex numbers. I used the rule that
a^2 + b^2 = (a+bi)*(a-bi)
The fourth and fifth term of this sequence is -30 and -10 respectively.
Data;
- first term (a) = -810
- common difference (r) = ?
<h3>Common Difference</h3>
The common difference in a geometric progression is the ratio between two successive terms.
Let's find the common difference in this sequence

The nth term of a geometric sequence is given as

The next two terms of this sequence will be 4th and 5th term.
The fourth term of this sequence is

The fifth term of this sequence is

The fourth and fifth term of this sequence is -30 and -10 respectively.
Learn more on geometric progression here;
brainly.com/question/12006112
Answer:
<u>THE ANSWER IS B.</u>
Step-by-step explanation:
After she had walked 2K along the trail, Erica's vertical distance from the top of the valley was equal to T kilometers.
I just checked it and this was the right answer.