70 m A farmer has a field in the shape of a semicircle.
A sketch of the field is shown.
The farmer asks a builder to raise a fence around
the edge of the field. He gets the following quotation.
Total cost = £32.65 per metre of fence + £150 for each day's work
The builder estimates that it will take five days to build the fence.
Work out the total cost.
70 x £32.65 = £2,285.5
£150 x 5 =£ 750
£2,285.5 + £750 = 3035.50

Total Cost = £ 6623.74

Step-by-step explanation:

We can see that the field is in the same of a semicircle, which has a base of 70 meter.

We need to calculate the perimeter of semicircle.

Consider it as a circle which has a diameter of 70m.

Radius = 70/2 = 35 meter

Perimeter of circle is given by = 2πr

Perimeter of circle is given by  = 2π(35)

Perimeter of circle = 219.8 meters

Perimeter of the semicircle = 219.8/2

Perimeter of the semicircle = 109.9 meters

This is just the perimeter around the globe of semicircle. The base of semicircle is not included in this.

Total Perimeter = 109.9 + 70

Total Perimeter = 179.9 meters

Total Cost = 32.65 (Total perimeter) + 150 (Number of days)

Total Cost = 32.65 (179.9) + 150 (5)

Total Cost = £ 6623.74

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

the answer is 1/4

step-by-step explanation: