Answer:
(a) 9
Step-by-step explanation:
substitute r = 4, t = 2
simplify
cubic of 2 is 8
simplify
C)17
you put the number in order from little to big and the one in the middle is your answer
Use the website Symbolab. It's helped with all of my calculus problems.
Suppose the length of the triangle is x, if the perimeter of the rectangle is 100 ft, the width of the rectangle will be (50-x) ft.
Area of rectangle will be:
A=length*width
A=x(50-x)
A=50x-x^2
at maximum area, dA/dx=0
thus
dA/dx=50-2x=0
solving for x we get
2x=50
x=25
thus for maximum area length=25 ft
the size of the width will be
50-x=50-25=25 ft
thus the maximum area will be:
25*25=625 sq. feet
<span>If the tip, t, varies directly with the number of guests, g, then
it means that any change in tip there is a corresponding change in the
number of guests. When the tip increases the number of guests increases
as well. Therefore,
t </span>α g
To change the it to equal sign, we incorporate a proportionality constant, k.
t =<span> kg
</span>
This equation will represent the relation of t to g
