What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?

Discriminant D = -4 , no real solution

Step-by-step explanation:

Here our equation is

Discriminant (D)=

where

a = coefficient of term containing

b= coefficient of the term containing

c is the constant term

hence

a=1 , b =-4 and c=5

Hence

Hence D is less than 0 , therefore we do not have any real solution to this quadratic equation.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

i think that you should ask google for the answer to that problem because if we don't know it google does