Answer:

Step-by-step explanation:

Since this answer is in <em>Quadrant</em><em> </em><em>I</em>,<em> </em>this would be a positive-positive answer, which in this case, will remain a positive.
<u>Extended</u><u> </u><u>Information</u><u> </u><u>on</u><u> </u><u>Quadrants</u>

<u>Extended</u><u> </u><u>Information</u><u> </u><u>on</u><u> </u><u>Trigonometric</u><u> </u><u>Ratio</u><u> </u><u>Values</u>

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Total amount of tennis balls:
5 green tennis balls + 2 yellow tennis balls + 6 red tennis balls + 8 blue tennis balls = 21 tennis balls.
The problem says that Tony removes 4 tennis balls without replacement, so:
Let's call Event A= yellow, green, blue, green
P(A) = (2/21)(5/20)(8/19)(4/18)
P(A) = 2.23x10^-3
P(A) = 0.00223
P(A) = 0.223%
5 1/4 divided by 1 3/8 in decimal form is 3.818!
You would need to sell 20 shirts to make a 100 dollar profit.
Step One
Solve for y
Cos(A) = adjacent / hypotenuse
Cos(A) = y / 8
y = 8 * cos(A)
y = 8 * cos(73)
y = 8 * 0.2924
y = 2.339
Step Two
Solve for x
Sin(A) = opposite / hypotenuse
Sin(73) = x / 8
x = 8 * sin(73)
x = 8 * 0.9563
x = 7.550
Check
x^2 + y^2 =? 8^2
2.339^2 + 7.55^2 =? 8^2
5.471 + 58.53 =? 64
64.000921 = 64 which is close enough.