HELP PLEASEFor a quadratic equation of the form 0 = ax2 + bx + c to have two zeros, what must be true?

Option (4)

Step-by-step explanation:

If a quadratic equation is represented by,

ax² + bx + c = 0

Then discriminant of this equation will be = b²- 4ac

Discriminant of a quadratic equation tells the type of roots the equation has.

1). If b² - 4ac > 0,

  Equation will have two distinct real roots

2). If b² - 4ac = 0

  Equation will have one real root

3). If b² - 4ac < 0

  Equation will have no real roots or there will be two imaginary roots.

For two real roots,

b² - 4ac > 0

b² > 4ac

Therefore, Option (4). 4ac < b² will be the answer.

Tamara’s monthly cash inflow be $624 .

Option (b) is correct .

Step-by-step explanation:

Tamara earns $8 an hour at her job working 25 hours per week.

Total earning per week = 8 × Number of hours

                                       = 8 × 25

                                       = $200

If 22% of her paycheck goes to taxes .

22% is written in the decimal form.

= 0.22

Pay check goes to taxes = 200 × 0.22

                                         = $ 44

Thus

Tamara’s cash flow per week = Total earnings per week - Taxes cost

                                                 = 200 - 44

                                                 = $156

As 1 month contains four months .

Tamara’s monthly cash inflow  = $156 × 4

                                                   = $ 624

Therefore the Tamara’s monthly cash inflow be $624 .

Option (b) is correct .