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# MMA Spring Exam

TermDefinition
Salary A set amount that you make per year.
Commission A percentage of sales.
Medicare Tax 1.4% of gross pay. Medical coverage for those over 65.
Social Security Tax 6.2% of gross pay. Small retirement payments for those over 65.
Federal Income Tax Withholdings Amount that the company withholds from your check toward Federal Income Taxes. Found from Tax Withholding Charts
IRS Internal Revenue Service. The government agency that collects income tax.
Gross income The total amount of income that you made from all sources.
Principal the original loan or investment amount
Interest a percentage amount of a loan amount that must be repaid along with the loan amount
Simple Interest interest that is calculated on just the loan principal, not including any accrued interest
Annual Percentage Rate (APR) the yearly interest rate for a loan
Compound Interest interest that is calculated on the total amount owed, including previously accrued interest
Congruent Figures Two figures that are the same shape and same size. Corresponding sides and angles are equal.
Similar Figures Two figures that are the same shape but not necessarily the same size. Corresponding angles are equal, and the sides are proportional.
Proportion The relative sizes of two or more values; written as a fraction or with a colon between the values.
Scale Factor The ratio of the length of a side of one figure to the length of the corresponding side of the other figure.
Distance How far apart two objects are.
Area The space occupied by a flat shape; measured in square units
Volume The amount of space taken up by an object; measured in cubic units.
Pythagorean Theorem a^2+b^2=c^2 - the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.
Hypotenuse In a right triangle, the side that is across from or not touching the right angle. Also, the longest side.
Leg In a right triangle, one of the two sides touching the right angle.
Right Triangle A triangle with one 90° angle.
Special Right Triangles A triangle with 30°-60°-90° angles or with 45°-45°-90° angles.
Distance Formula d=√[(x2-x1)^2+(y2-y1)^2 ]
Trigonometry A branch of mathematics that studies relationships between side lengths and angles of right triangles.
Opposite In English, on the other side. In a right triangle, the leg that is not touching or is across from the angle.
Adjacent In English, next to. In a right triangle, the leg that is touching or is next to the angle.
Theta (θ) Greek letter used as a variable for unknown degree of an angle.
SOHCAHTOA An acronym that helps you remember the trig formulas.
Sine (θ) opposite/hypotenuse
Created by: meminot
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