Arectangle has a perimeter of 60 cm let x represent the length of one side of the rectangle which of the following functions models the area a(x) of the rectangle?

a. a(x) = x^2 + 30x
b. a(x) = 30x - x^2
c. a(x) = x^2 + 60x
d. a(x) = 60x - x^2

B.

Step-by-step explanation:

P(x)= 2( x+y)  //Rectangle perimeter              =>   A(x)= xy         //Rectangle area

60 = 2(x+y)                                                                   =x(30-x)  //Substituting y            

60/2= [2(x+y)]/2                                                            =30x - x²

  30= x+y

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all