Answer:
domain will be ( -∞, ∞)
Step-by-step explanation:
The given functions are f(x) = x² - 1 and g(x) = 2x - 3
We have to find domain of (fog)(x)
We will find the function (fg)(x) first.
(fog)(x) = f[g(x)]
= (2x - 3)²
= 4x² + 9 - 12x - 1
= 4x² - 12x + 8
= 4 (x² - 3x + 2)
The given function is defined for all values of x.
Therefore, domain will be ( -∞, ∞)
<u>brainly.com/question/2458431</u>
V=hpir^2
h=20
r=12
v=20pi12^2
v=20pi144
v=2880pi
2nd one is answer
Hello!
You simply divide 78 by 171.
78÷171= 0.45614035
Rounded: 0.46
Answer:
8 hours
$480
Step-by-step explanation:
Let us assume the hours be x
There should be two equations
For Plumber A = 60x
For Plumber B = 40 + 55x
Now in order to considered the cost to be the same we equate these two equations
60x = 40 + 55x
5x = 40
x = 8 hours
Now the total cost for plumber A is
= 480
And, the total cost for plumber B is
= 40 + 55(8)
= 480
hence, the total cost is $480
As we know she wont be depositing or withdrawing that means that the total money remaining in the bank would be static and would just add up the interest their is.
SO 2 per cent of 5000 is 100 $. So she will earn a 100 $ from her first account.
And 2.5 % from 10000 is around 250 $ so she earn a total of 250 $ from her second account.
Now adding up the complete money that she will earn at the end of the year would be around 350 $.
