Answer:
y=x
Step-by-step explanation:
y=12
Answer:
Option B is correct
Step-by-step explanation:
A function has form of f(x) = 2x + 3, or y = 2x + 3
To find the inverse of f(x), we are going to represent x in form of y.
To do this, we try to send all components containing x to one side of expression and send the other components to the other side of expression.
Now, let's do it.
y = 2x + 3
We firstly send 3 to the right, change the sign of 3 from + to -, we have:
y - 3 = 2x
We then rearrange both sides to get a standard form:
2x = y - 3
We now divide both sides by 2 to get the expression of x:
(2/2)x = (y - 3)/2
We simplify both sides of expression to obtain final result:
x = (1/2)y - 3/2
=> Inverse of f(x) is x = (1/2)y - 3/2
=> Option B is correct
Answer:
$14.64
Step-by-step explanation:
First, find how much he spent on the calculators
Divide the amount spent on calculators by the number of students
calculator cost/students
117.76/16=7.36
So, he spent 7.36 on each student so far.
To find how much he still has left to spend, subtract the amount he has spent from the total he can spend
total-$ spent on calculators
22-7.36=14.64
He can still spend $14.64 on each student
Hope this helps! :)
Try using the formula Pi (r) squared (1.5cm)
