Answer: I am going to put a link
maybe its going to help you?
Step-by-step explanation:
http://s3.amazonaws.com/illustrativemathematics/illustration_pdfs/000/001/217/original/illustrative_mathematics_1217.pdf?1390751150
Answer:
71
Step-by-step explanation:
1/71 * ? = 1
1/71 * x = 1 [consider 'x']
x = 1/(1/71)
x = (1/1)/(1/71) [1 = (1/1)]
x = (1/1)* (71/1)
x = 71.
Hope you're satisfied.
Answer:
im not 100% sure but wouldnt #15 be 9squared-81=0
Step-by-step explanation:
9 squared would turn to 81 because 9 time 9 is 81 and 81- 81 is 0
First you must grasp what an inverse function really is to make it simple on yourself. If f(x) produces a point (x,y), the inverse function will produce (y,x). That is why it is an "inverse" function because it reverses the x and y coordinates. With that out of the way, mathematically, you simply have to solve the function for the independent variable and then switch the variable labels. Let f(x)=y=(2x+3)/5
y=(2x+3)/5 multiply both sides by 5
5y=2x+3 subtract 3 from both sides
5y-3=2x divide both sides by 2
(5y-3)/2=x now simply reverse the labels for the variables and you have the inverse function of f(x)
y=(5x-3)/2 so
f^-1(x)=(5x-3)/2