Answer:
$1.8
Step-by-step explanation:
let x equal the money that she spend on the folders
let y equal the cost of 1 folder
let z equal the number of folders she bought
We got:
y + z = x
We know that :
y = 0.15
z = 12
So,
y * z = x
0.15 * 12 = x
1.8 = x
So x = 1.8
Alicia cost in total of $1.8 to buy folders
Hope this help you :3
I hope it helps :). x2 + 49 = 0
Answer:
D
Step-by-step explanation:
If we add 2 and 3.5 we will get the answer D
Answer:
12
Step-by-step explanation:
The reason why AC cannot be 12 because AB is 12, and by looking at the graph AC is obviously longer.
(f∘g)(x) is equivalent to f(g(x)). We solve this problem just as we solve f(x). But since it asks us to find out f(g(x)), in f(x), each time we encounter x, we replace it with g(x).
In the above problem, f(x)=x+3.
Therefore, f(g(x))=g(x)+3.
⇒(f∘g)(x)=2x−7+3
⇒(f∘g)(x)=2x−4
Basically, write the g(x) equation where you see the x in the f(x) equation.
f∘g(x)=(g(x))+3 Replace g(x) with the equation
f∘g(x)=(2x−7)+3
f∘g(x)=2x−7+3 we just took away the parentheses
f∘g(x)=2x−4 Because the −7+3=4
This is it
g∘f(x) would be the other way around
g∘f(x)=2(x+3)−7
now you have to multiply what is inside parentheses by 2 because thats whats directly in front of them.
g∘f(x)=2x+6−7
Next, +6−7=−1
g∘f(x)=2x−1
Its a lts easier than you think!
Hope this helped