jugoslav

This question is missing something...

Angle B = 2 * 28 = 56 degrees

Angle C depends on the measure of the angle A

1/    If angle A is 90 degrees, then the measure of angle C is 34 degrees

2/    If angle A is 60 degrees, then the angle C is 64 degrees

x coordinate     [(2 / 4)*3] + (-5) = - 3.5

y coordinate    [(7 / 4)*3] + (-4) = 1.25

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Of the 60 people in a room, three-fourths (3/4) of the people are men, and two-fifths (2/5) of the people have blonde hair. What is the least number of men in the room who could have blonde hair?

Of the 60 people,  (3/4) or 45 are men             ( I guess 15 are women)

Of the 60 people (2/5) or 24 have blonde hair

If all 15 women have blonde hair, then only 9 men have blonde hair. 

This is toooooooooooo easy

1/   angle ABD = arcsin(4 / 8)

2/   BD = sqrt( 8² - 4²)

3/    CD = BD / sin(ABD)

4/   AC = CD + 4

Let triangle XOY be a right-angled triangle with XOY being 90 degrees. Let M and N be the midpoints of legs OX and OY respectively. Given that XN=24 and YM=31, find XY (aka the hypotenuse).

OX => a       OY => b

24² = (b/2)² + a²

576 - (b/2)² = a²

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(a/2)² = 31² - b²

a² / 4 = 961 + b²

a² = 3844 - 4b²                   a² = 358.13333333

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576 - b² / 4 = 3844 - 4b²

b² = 13072 / 15                  b² = 871.4666667

XY = sqrt( a² + b² ) = 35.0656527   

If dotted lines form the right angle, then the area of a triangle  ABC is:    A = 8*10 / 2 

Your answer is incorrect!

1/       Rotation of 90º counterclockwise about the origin 

2/      Translation 2 units up

" Find the area inside the square but outside the 4 small circles."

What about the big circle???

In a rectangle ABCD, point E is on side CD. The area of triangle ADE is one-fifth of the area of quadrilateral ABCE. What is the ratio of the length of segment DE to the length of segment DC? Express your answer as a common fraction.

The ratio of DE to CD is 1/3