The rectangle was basically cut into two right angles so all you have to find is the length of the triangle. Using what we know which is the h<span>ypotenuse and the height, use the equation x= the square root of c^2 - a^2.
The base is x = 9.17 in</span>
Answer:
given that and .
(If these weren't your functions and you understand neither way, please let me know. Thank you kindly. Have a nice day.)
Step-by-step explanation:
.
So here we want to start with the inside first.
That is, start with .
Let then
We need to solve for .
f(c)=2
8c+6=2
Subtract 6 on both sides:
8c=2-6
8c=-4
Divide both sides by 8:
c=-4/8
c=-1/2
Since then .
So now we need to find .
Let then .
So we need to solve for .
Subtract 7 on both sides:
Multiply both sides by 3:
So we have .
----------------Another way!--------------------------
We could actually find the functions that are inverses of the given functions.
The basic idea is that we need to swap x and y:
Now we need to remake y the subject.
Subtract 6 on both sides:
Divide both sides by 8:
is the inverse of .
Again the basic idea to find inverse is to swap x and y:
Now solve for y.
Subtract 7 on both sides:
Multiply both sides by 3:
is the inverse of .
Now let's find:
Answer:
The dimensions of the original rectangle are Length =12cm, Width=8cm
Step-by-step explanation:
Let the length of the rectangle be x
Let the width of the rectangle be y
The perimeter of a rectangle is 40cm.
2(x+y)=40
Divide both sides by 2
x+y=20
If the length were doubled(2x) and the width halved(y/2), the perimeter would be increased by 16cm,i.e.(40+16)cm
Therefore:
Divide both sides by 2
From the first equation, x=20-y.
Substitute x=20-y into
Answer:
this helped me i hope it helps u!
http://www.math.com/school/subject1/lessons/S1U2L2DP.html#:~:text=A%20proportion%20is%20simply%20a,as%20four%20is%20to%20five.%22
Step-by-step explanation:
have a great day! :)/ night
hope this helps you let me know if it don't and I will find another link! :)