The solution to given quadratic equation is x = -0.3851 or x = 10.3851
<em><u>Solution:</u></em>
Given equation is:

To find: solve by quadratic equation formula

Using the above formula,

<u><em>Substituting the values of a = -4 ; b = 40 ; c = 16 in above quadratic formula we get,</em></u>

Thus the solution to given quadratic equation is x = - 0.3851 or x = 10.3851
1 hour = 60 minutes
27/60 = 0.45 miles per minute
Answer:
Step-by-step explanation:
AR⊥RS (tangent line is ⊥ to radius of the circle)
BS ⊥ RS (tangent line is ⊥ to radius of the circle.)
∴ AR and BS ⊥ to same line RS.
Hence either AR and BS are in same line or parallel.
But they are radii of different circles.
∴ AR ║BS