Please someONE HELP ME THIS IS RLLY IMPORTANt ITS RLY IMPORTANT DO THE ONES U KNOW OR AT LEAST TRY TO DO ALL OF EM. A rectangle has a length of 4w cm.

A) If the width of the rectangle is half its length, write an expression for its width and perimeter m.

B) find the area of the rectangle when w = 3
(Hint: draw a diagram to show the rectangle and its length and width)

send a picture of it

5 meters per second

hope this !

step-by-step explanation:

a

step-by-step explanation:

b, i believe, but not sure.

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)