Answer:
2.5584
Step-by-step explanation:
9.84 * 0.26
= 9.84(0.2 + 0.06)
= 1.968 + 0.5904
= 2.5584
Answer:
step 1:
2,-5
step 2:
7,1
step 3:
6/5
Step-by-step explanation:
Answer:
Step-by-step explanation:
Suppose the dimensions of the playground are x and y.
The total amount of the fence used is given and it is 780 ft. In terms of x and y this would be 3x+2y=780 (we add 3x because we want it to be cut in the middle). Therefore, y= 780/2-3/2x. Now, the total area (A )to be fenced is
A=x*y= x*(390-3/2x)=-3/2 x^2+390x
Calculating the derivative of A and setting it equals to 0 to find the maximum
A'= -3x+390=0
This yields x=130.
Therefore y=780/2-3/2*130=195
Thus, the maximum area is 130*195=25,350ft^2
True because they have the same size angles