<span>f(x)=<span>x2</span>−1</span>That means to find the value of the function at any value of x, we square x and subtract 1. If <span>x=2a</span>, we square <span>2a</span> and subtract 1:<span>f(2a)=(2a<span>)2</span>−1=4<span>a2</span>−1</span>Now, we know that <span>f(2a)=35</span>so we can find the value of a:<span>f(2a)=(2a<span>)2</span>−1=4<span>a2</span>−1=35</span><span>4<span>a2</span>−1+1=35+1</span><span>4<span>a2</span>=36</span><span><span>a2</span>=9</span><span><span>a=±3</span></span>
Answer:
The answer is option 2.
Step-by-step explanation:
In the question, the independent variable is time and dependent is distance. As the time changes, the distance will also change it means the distance depends on time.
For example,

Let t = 1,


Let t = 5,


Therfore, as time increases, distance will also increase.
42.5 cm. Do you want me to explain it?
Answer:
2
Step-by-step explanation:
Notice the question of which number is being subtracted 12 times in order for the answer to be zero is the same as finding b.
Notice 24 is being divided by b to get 12 as result.
The question is then: by what number we divide 24 to get 12?
It is 2 since:

And notice if we subtract 12 times b from 24 we actually get 0:
