# Tutor profile: Rose M.

## Questions

### Subject: Geometry

How do I find the measurement of an angle of a right triangle if I am only given one angle measurement?

You can find the angle of a right triangle if you know 2 of its angles. The 3 angles when added together will equal 180 degrees. The right angle will equal 90 degrees. If the angle given is 30 degrees then you would subtract 30 and 90 from 180 to find the 3rd angle. 180-30-90=60 Your 3rd angle would be 60 degrees.

### Subject: Pre-Algebra

In which order do I solve an expression that consists of parentheses, multiplication, addition, subtraction and division?

The order in which you solve the equation is important. The solution may be affected by the order in which you solve the expression. PEMDAS is an acronym for Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. You need to solve your expression in this order. For example: 2(5+6)-6/3= 10+12-6/3= 10+12-2= 22-2= 20

### Subject: Algebra

What is the FOIL method for factoring binomials?

FOIL is an acronym for First, Outside, Inside, Last. A binomial expression is (a+b)(c+d). You need to multiply the First terms of each set of parentheses ac, you will then multiply the Outside terms ad, multiply the Inside terms bc, multiply the Last terms bd. Your equation will look like this: (a+b)(c+d) = ac+ad+bc+bd.

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