96. a rectangular courtyard is to be fenced so that one of the sides is 4 feet longer than an adjacent side (s). which of the following quadratic functions can be used to represent the area of the courtyard? a=s^2 a=4s^2 a=s^2+4 a= s^2+4s

The short side measures s.

The adjacent, longer side measures s + 4.

The area of a rectangle is the product of the lengths of two adjacent sides.

area = s(s + 4)

Distribute the s.

area = s * s + s * 4

area = s^2 + 4s

idk i would have to be there to under stand it

step-by-step explanation:

idk i would have to be there to under stand it

a) 40 more; b) old factory:   10%, new factory:   16%; c) week 4

explanation:

a) at week 0, we see in the graph that the new factory produces 190 specialty items.  

using the function, substituting 0 in for w,

this is a difference of 230-190 = 40.

b) the function for the old factory is written in the form f(x) = a(1+r)ˣ, where a is the original amount, x is the amount of time and r is the growth rate.   the equation for the old factory is ; 230 is in place of a and is the original amount; w is the amount of time; which means 1+r = 1.1.   this means that r must be 0.1 or 10%.

for the new factory, we find the percent of increase to find the growth rate; the formula for this is

between the first two points, the amount of change is 220-190 = 30; this gives us

30/190 = 0.158 ≈ 0.16 = 16%

c) at week 0, the old factory has 230 while the new factory has 190.

at week 1, the old factory has 230(1.1) = 253 while the new factory has 220.

at week 2, the old factory has 230(1.1²) = 278.3 while the new factory has 252.

at week 3, the old factory has 230(1.1³) = 306.13 while the new factory has 290.

at week 4, the old factory has 230(1.1⁴) = 336.743 while the new factory has 337.   this is the first week that the new factory surpasses the old.