Identify the quadratic formula.

B

Step-by-step explanation:

Quadratic formula is a direct formula which can be remembered .

Second option B is called the quadratic formula .

It can be obtained using the concept of completing squares as well.

The a,b and c are the coefficients in the quadratic equation

It is used to solve the given quadratic for the value of x .

For example if there is an equation

we can compare the equation with the standard equation and say

a=1 b=5 and c=6

plugging the values in the quadratic formula gives the solution.

so

B

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

hope to and hope that my answer is brainliest.(follow me )

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