Absolute value inequalities can be divided into two inequalities
if you had |x| > n
then it could be divided into
x>n & x<-n
The answer would be £20, you would turn this into a proportion and doing that you'd have 70/100=14/x(x being the full cost) then you cross multiply and doing so you get 1400=70x and 1400 divided by 70 equals 20, so your answer is £20
If you are asking for the circumference of an arc (definition of arc is "a part of the circumference of a circle or other curve"), then the formula is:
x/360*r*2pi, where x is the angle in degrees and r is the radius.
note that if you want to find the circumference of the sector, the formula becomes
x/360*2*2pi + 2r,
where x is the angle in degrees and r is the radius.
The formula for the area of a circle is pi times the radius squared. Here are the steps to solving this problem.
1. First, find the radius. Since the radius is allows half of the diameter, then we divide the diameter by two. 50/2= 25
2. Next, we square the radius. 25^2= 625
3. After that we multiply 625 ft by pi(3.14).
625 times 3.14= 1962.5
4. The last step is to round the the answer to the nearest square foot. Since 5 is at the end, we round up to 1,963.
So the answer is 1,963 ft^2.
