Answer:
Step-by-step explanation:
I need help.to
Answer:
The answer is : x = 9.505 and x = -1.005
Step-by-step explanation:
To solve the quadratic equation use the formula :

Where a is the coefficient of x² , b is the coefficient of x and c is the numerical term
∵ a = 18 , b = -153 and c = -172
∴ 

∴ x = 9.505 and x = -1.005
Circumference = r * 2 * pi
Circumference of track 1 is 376.8
Answer:
intersection of the y axis