math lab

2. a sample is a part of the population
5. money you earn only the principal.
7. a ratio is a comparison of two measure.
8. tax= is a percent of the purchase price.
10. two angles are complementary if the sun of their measure is 90.
13. a prism is a three shape figure with two parallel and congruent polygonal faces , called base.
14. rate =a unit rate that gives the cost per unit cost .
16. a percent is a ratio that compare a number to 100

1. a variable is a letter that stand for a number the value of an algebraic express ion varies or changes depending upon the value given to the variable.
3. angle= a right angle is an angle with a measure of 90.
4. probability is used to describe the likeness that an event will happen.
6. area= the surface area of a prism is the sum of the area of its faces.
8. angle are two angles whose measure add to 180
9. a pyramid is named for the shape of its base .
10. a commission is a pay that is equal to a percent of sales.
11. a population is a group of object of people about which information is wanted.
12. an equation is a mathematical sentence with an equal sign.
15. the of a three dimensional figure is the number of cubic units needed to fill the space inside the figure .