If the discriminant of a quadratic equation is equal to -8, which statement describes the roots? there are two complex roots. there are two real roots. there is one real root. there is one complex root.

The answer is (a) There are two complex roots.

Step-by-step explanation:  Given that the discriminant of a quadratic equation is equal to - 8. We are to select the correct statement from the given options regarding the roots of the equation.

We know that if "d" is the discriminant of a quadratic equation, then

(i) The two roots will be real and equal if D = 0.

(ii) The two roots will be real and unequal if D > 0.

(iii) The roots will be complex if D < 0.

Since, D = - 8 < 0, so the roots of the quadratic equation will be complex.

Thus, (a) is the correct option.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2