The equation s= 3√5x can be used to estimate the speed, of a car in miles per hour, given the length in feet, x, of the tire marks it leaves on the ground. a car traveling 90 miles per hour came to a sudden stop. according to the equation, how long would the tire marks be for this car?

180ft

Step-by-step explanation:

s= 3√5x

S=90

So 90= 3√5x

30= 3√5x

Square both sides

900 = 5x

x = 900/5 = 180 ft

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function