Work out the area of this semicircle.
take a to be 3.142 and give your answer to 2 decimal places.
10 cm
area of a circle

Area of semi circle = 1/2 ×πr²

π = 3.142 and r = if 10cm

Area = 1/2 × 3.142 × 10²

Area = 1/2 × 3.142 × 100

Area = 3.142 × 50

Area = 157.10cm²

Step-by-step explanation:

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step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,