Brandon's homework answers

The average male is 15% body fat, If Jack has a mass of 79 kgs, How much of it is fat?






Jack approximately has 11.85 kilograms of fat.



Last year the bombers averaged 25200 fans per game. This years attendance dropped 4.9%. What was this years average attendance?





This years average attendance is 1234.8 .

Homework, November 4, 2010

Homework
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1) A triangle has side lengths of 12cm, 16cm, and 20cm.
a) What are the area of the three squares that can be drawn on the sides of the triangle?
b) Is the triangle a right triangle? Explain

2) The sides of a right triangle is 9cm, 12cm, and 15cm.

a) Sketch a picture of the triangle. Draw a square on each side of a triangle.
b) What is the area of each square?
c) Write an additional statement using the areas of the 3 squares.


Answer

1) a) 144cm2=12cmx12cm
256cm2=16cmx16cm
400cm2=20cmx20cm
b) yes this triangle is a right triangle because it has a right angle (90 degrees)

2) a)

b)

c) a^2+b^2=c^2

12^2+9^2=15^2

144+81=225

225=225