Answer:
Step-by-step explanation:
Area of rectangle=width times height
Perimeter of rectangle=width plus width plus height plus height
If you have a rectangle that is 10 units wide and 5 units tall. The area would be 10X5=50units squared and the perimeter would be 10+10+5+5=30 units.
If you multiply the width by 14, everything changes. 10X14 is 140 units. So the width of the rectangle is now 140 units while the height is 5. The area would now be 140X5=700 Units squared and the perimeter would be 140+140+5+5=290 units.
Area of triangle= base time height divided by 2
Perimeter of triangle= side plus side plus side
If its a triangle, let's say a right triangle 10 units at the base and 5 units in height. The area will be 25 Units squared. 10X5=50 divide by 2=25 units squared. If you multiply the base by 14....140X5=700 divide by 2=350.
I didn't figure out the perimeter of the triangle, because I'm being too lazy to figure out the length of the third side.
2x^3y+18xy-10x^2y-90y
= 2xy(x^2 + 9)- 10y(x^2 + 9)
= (x^2 + 9)(2xy - 10y)
= (x^2 + 9) 2y(x - 5)
= 2y (x^2 + 9) (x - 5)
36, because the square root of 4 is 2 and the square root of 81 is 9. You multiply those and then double it to get 36.
The area is about 91 units^2
The perimeter is about 39 units
Answer:
⇒When the funtion is both one one and onto , then inverse of the function exists.
⇒≡Consider the function
y=x+2
It is one-one, because for every x there is unique y.So, it is one one.In one-one, there may be some elements in x, which do not have preimage.
It is onto also, because for each x, there is unique y.
So, the inverse of function will be
x=y-2
Replacing x by y and y by x , gives inverse of the function.
y=x-2, is the inverse of the function.
