Let the radius be: r and height be h
volume = πr²
if the radius is halved then radius = r/2
and height is doubled, so height= 2h
volume = πr*r/4*2h = π*r²*h/2
Thus the volume will be halved.
For the first one I’m not sure, but for 2 it is B and 3 is 5.
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 =
Answer:
m = 2
Step-by-step explanation:
W=10+2t has the form y = mx + b, the slope-intercept form. Comparing
y = b + mx to
w = 10 + 2t
we see that the slope, m, is 2. This signifies that the baby gains 2 pounds per month shortly after birth.