First: solve the expressions
(a) 11-(6+3)= 11-9= 2
(b) (8-2)-3= 6-3=2
(c) 12-(5-4)=12-1=11
Next: plug them in to the choices
a. (2)+(2)=11 (this is not true so this is wrong)
b. (11)-(2)<2 (this is not true so it is wrong)
c. (2)>(11) (this is not true so this is wrong)
d. (11)>(2)+(2) (this is true so this is your answer)
your answer is D... Hope this helps :)
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The area of the shaded region is 502.4 sq. ft.
An object's area is how much space it takes up in two dimensions. It is the measurement of the quantity of unit squares that completely cover the surface of a closed figure. The word "area" refers to a free space.
According to the question,
Diameter of inner circle = 36 ft.
Radius of inner circle = 36/2 ft. =18 ft.
As the width of the ring is 4 ft. , the diameter of the outer circle = 36+4+4= 44 ft.
Radius of outer circle = 22 ft.
Area of the shaded region = Area of outer circle - Area of inner circle
= π(22)(22) - π(18)(18)
= π(484 - 324)
= 3.14 * 160
= 502.4 sq. ft.
Learn more about area here:
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Volume of a cylinder
larger cylinder: r=2, h=28
volume of larger cylinder lets say (V) :
vokume of smaller cylinder lets say (v): r=2, h=7
so the ratio= volume of largercylinder/ volume of smaller
so in ratio terms the
Ans: 4:1
27+70+62+80=239
239÷5=47.8
47.8 is your final answer.