Answer:
width = 1.8 in
length = 3.6 in
height =
Step-by-step explanation:
A designer is making a rectangular prism box with maximum volume, with the sum of its length, width, and height 8 in
Let l , w and h are the length , width and height
Plug it in the first equation
volume the box is length times width times height
To get maximum volume we take derivatived
set the derivative =0 and solve for w
width = 1.8 in
length = 2w= 3.6 in
height =
volume of a cone = (1/3)*pi*r^2*h
180 = pi(r^2)h
180/pi(r*2) = h
Answer:b
Step-by-step explanation:
Answer:
32 - 2.5x - 2y
Step-by-step explanation:
He bought 2.5 pounds weight of apples for x dollars a pound. Thus, cost is 2.5x.
He bought 2 bags of lettuce for y dollars each. Thus, cost is 2y
Total bill cost = 2.5x + 2y
We are told he has a coupon for $2 off his bill.
This means the amount he will pay will now be;
2.5x + 2y - 2
Gabriel has $30 to pay for the groceries.
Thus, his change will be;
30 - (2.5x + 2y - 2)
This gives;
32 - 2.5x - 2y
Answer:
Given that 1minute =3/7of the vessel
let the time taken in minutes to fill the whole of the vessel be' x' minute.
1min =3/7
xmin =whole vessel =1=7/7
=3x/7=1=x=7/3=2.3min=2min.3sec
