Ava has a collection of 200 coins. How many coins represent 5% of her collection?
1 answer:
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In terms of its radius , the volume of the balloon is
The diameter is twice the radius, so that in terms of its diameters, the balloon's volume is given by
Differentiate both sides with respect to time :
The diameter increases at a rate of . When the diameter is
, we have
or about 23,562 cc/min (where cc = cubic centimeters)
Answer:
option D: 27.5 square units
Step-by-step explanation:
Divide the polygon in 6 figures
see the attached figure
Area of figure 1 (right triangle)
A1=(1/2)(3)(3)=4.5 units²
Area of figure 2 (rectangle)
A2=(1)(3)=3 units²
Area of figure 3 (rectangle)
A3=(1)(3)=3 units²
Area of figure 4 (right triangle)
A4=(1/2)(3)(3)=4.5 units²
Area of figure 5 (right triangle)
A5=(1/2)(4)(5)=10 units²
Area of figure 6 (right triangle)
A6=(1/2)(1)(5)=2.5 units²
The total area is equal to
At=A1+A2+A3+A4+A5+A6
At=4.5+3+3+4.5+10+2.5=27.5 units²
