# Tutor profile: Michelle L.

## Questions

### Subject: Trigonometry

What can Trigonometry be used for in everyday life?

Trigonometry is used in calculating heights of large structures such buildings or mountains. It is also used for flight engineering for calculating speed, distance & direction as well as the speed & direction of the wind.

### Subject: Basic Math

What is 'basic math' and why is it so important?

Basic Math is the simple operations such as addition, subtraction, multiplication & division. It is important because every mathematical concept is built on top of these 4 operations.

### Subject: Algebra

Solve the equation 5(- 3x - 2) - (x - 3) = -4(4x + 5) + 13

Given the equation 5 (- 3 x - 2) - (x - 3) = - 4 (4 x + 5) + 13 Multiply factors -15 x - 10 - x + 3 = - 16 x - 20 + 13 Group like terms. - 16 x - 7 = - 16 x - 7 Add 16x + 7 to both sides and write the equation as follows 0 = 0 The above statement is true for all values of x and therefore all real numbers are solutions to the given equation.

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