# Tutor profile: Mai M.

## Questions

### Subject: Pre-Algebra

In the following questions, solve for x in each case just by looking at the equation. 1. 18 – x = 12

x = 6 You can solve this problem through simple inspection. Because 18 – 6 = 12, x = 6.

### Subject: Management

Discuss the various types of accounts and include examples of what information DC Surf Co may be able to provide within each type?

Income statement Balance sheet Statement cash flows Statement changes in Equity

### Subject: Algebra

For what value of the constant K does the equation K x2 + 2x = 1 have two real solutions?

Rewrite the given quadratic equation in standard form: Kx 2 + 2x - 1 = 0 Discriminant = 4 - 4(K)(-1) = 4 + 4K For the equation to have two real solutions, the discriminant has to be positive. Hence we need to solve the inequality 4 + 4K > 0. The solution set to the above inequality is given by: K > -1 for which the given equation has two real solutions.

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