Someone please help me!

AE= 6.9

Shaded area= 60.6 (approximately)

Step-by-step explanation:

Triangle AEO is a right angled triangle. Length of EO is the radius which is 4cm and OA= 8cm

Using Pythagoras calculate length of AE.

AE^2 = AO^2- EO^2

AE = square root of ( 64- 16)

AE = 6.9 cm

Length EO is half of the height of the rectangle so EO X 2 is the height which is 8cm.

AE x 2 is the width of the rectangle so 6.9 x 2 = 13.8cm

Area of rectangle = width x height

Area of rectangle = 13.8 x 8 = 110.9

Then calculate area of the circle:

Area of circle = pi x r^2

4^2pi= 16pi

Area of shaded = area of rectangle - area of circle= 110.9- 16pi

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844