Supplementary angle = Angels which add up to 180 degrees
Angle CED
Answer: 
<u>Simplify both sides of the equation</u>
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(Combine Like Terms)
<u>Subtract 12x from both sides</u>
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<u>Add 4.5 to both sides</u>
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For this problem, it is best to draw a plane showing the positive and negative, in x and y axes.
Since it is given that the coordinates of the epicenter is at (0,0), thus it is at the center of the plane.
In order to find the outside boundary of the earthquake, the center-radius equation can be used as follows:
[(x-h)^2] - [(y-k)^2] = r^2
where, (h,k) is the coordinates of the center, which is (0,0), and r is the radius which is equal to 52.
Substituting these values into the standard center-radius equation,
x^2 - y^2 = 52^2
The answer is,
x^2 - y^2 = 2704
Answer:
781
explanation:
the amount of money divided by the amount each shirt costs will give you the answer.3124/4=781
so the amount of T-shirts the volunteers sold was 781 t-shirts
