assume the square side = x, then its circumference = 4x
so the circle circumference would be 89 - 4x which equals 2pi r
so x = 1/4 (89 - 2pi r)
now A(r) = x^2 + pi r^2
= [1/4 (89 - 2pi r)]^2 + pi r^2
diff. w.r.to r u get:
dA/dr = 1/8 (89-2 pi r)(-2 pi) + 2 pi r = 0
2pi r - pi/4 (89-2 pi r) = 0
2r - (89 - 2 pi r)/4 = 0
2r + pi r /2 = 89/4
mult. the eqn by 4 and solve for r u get:
r = 89 / (8 + 2pi) cm
and the circle circumference = 2 pi r = 2 pi 89 / (8 + 2pi)
= 178 pi / (8 + 2pi) = 89 pi /(4 + pi) cm
hope this helps
The mean would be 4.5. This is because you add up all the numbers which equals 22.5. Then divide by 5 since there is 5 numbers in the set. So the answer comes out to be 4.5.
Answer:
(x-5) (x-2)
Step-by-step explanation:
x^2 (-2x-5x) +10
basically you will write the equation down and then to double check multiply the x and then the -5 into (x-2). this can be repetitive if you get it wrong so try to do numbers that make sense.
Answer:
2 lemons per cup
Step-by-step explanation:
4/2 is two.
