Need help ASAP!! In which of the following situations would it be appropriate to use the midpoint formula? A) To determine the length of fencing needed along one side of your yard. B) To hang a lamp in the center of a room. C) To find the distance between your home and school. D)To calculate the amount of string needed for a clothesline.

x = central angle apc = measure of minor arc ac

the two angles x and 30 add to 180, so x+30 = 180 and x = 180-30 = 150. the measure of minor arc ac is 150 degrees.

what we need to do from here is find the circumference and then multiply it by x/360 since there are 360 degrees in a circle. in this case, x = 150, so x/360 = 150/360 = 15/36 = 5/12. the shortest distance along the curve from a to c is 5/12 of the distance around the entire circle (aka circumference)

c = circumference

c = pi*d

c = pi*24

c = 24pi

now multiply this by 5/12 to get

distance along minor arc ac = (5/12)*(circumference)

distance along minor arc ac = (5/12)*(24pi)

distance along minor arc ac = 10pi

the formula you can use is

l = (x/360)*pi*d

with

l = length of minor arc

x = central angle

d = diameter

which essentially is the steps we took though a bit differently.

did you get the answer?

simple 80 pieces in 1 sercing so 80*47=3760+20=3780

the answer, i believe is y-8=1(x+4)