C is the answer all you had to do was
31.80-4.00
Which is 27.80
Then add 2.50
Which is 30.3!
First, start with h(x) and plug in 3
h(3)=3^(2)+4
And you get 13. Next, plug the 13 into the g(x):
g(13)=2(13)
And you get 26.
Hi there.
Area = <em>lw</em>
So, since we have the dimensions, we can just use the formula.
20 · 20 = 400 ft²
Cheers~
Answer:
A. (-∞, ∞)
Step-by-step explanation:
f circle g (x) is another way of expressing f(g(x)). Basically, we have to plug g(x) into f(x) wherever we see x's.
f(x) = x^2 - 1
f(x) = (2x-3)^2 - 1
Now find the domain. I think the easiest way to do this is to graph it. I've attached the graph. You can also do it algebraically by thinking about it: it's a positive parabola (+x^2) and its minimum is -1, so its range will not be all real numbers, but its domain will certainly be. (The range would be answer choice B!)
Domain = (-∞, ∞)
6 x -9 = -54
<span>6 + (-9) = -3
</span>x2<span> - 3x - 54 = 0
</span>
<span>(X + 6 ) (X - 9)
</span>
x2<span> - 3x - 54 = (X + 6 ) (X - 9)
=
6 & -9
</span>