Answer:
percent means <u>per hundred </u>
Between the 100 squares, 60 of them are shaded
so you do 60/100
it's kind of like correcting tests, you have 100 questions, you got 80 of them right so its going to be 80/100
when you calculate percentage, you do the fraction x 100
so it's 60/100 = 0.6 x100 = 60%
hope that answers your question
Don't hesitate to leave a comment if you are confused about something
Step-by-step explanation:
Answer:
The function f has an inverse because it is one-to-one.
Step-by-step explanation:
The condition for a function to have an inverse is that every x coordinate maps to a single y - coordinate. As illustrated by the diagram attached in the second picture, every x value maps to one y value therefore satisfying the condition making the function have an inverse.
Answer:
The answer is going to be D) . 14
Step-by-step explanation:
Answer: A(min) = 2700
Step-by-step explanation:
Let x the side of the square base, and h the height of the bin then
V(b) = x²*h ⇒ h = 13500/x² (1)
Total area of the bin = area of the base + 4 sides
each side x*h
A(b) = x² + 4*x*h ⇒
Area of the bin as fuction of x . From equation (1)
A(x) = x² + 4*x*(13500/x² A(x) = x² + 54000/x
Taking derivatives both sides of the equation:
A´(x) = 2*x - ( 54000/x²)
A´(x) = 0 ⇒ 2*x - ( 54000/x²) = 0
( 2*x³ -54000)/x² ⇒ 2*x³ - 54000 = 0
x³ - 27000 = 0
x = 30 in
and h = 13500/x² ⇒ h = 13500/900
h = 15 in
And finally the surface area is
A(min) = x² + 54000/x ⇒ A(min) = 900 + 1800
A(min) = 2700 in²
