a car is traveling at a speed of 40 miles per hour. what is the car's speed in kilometers per hour? how many kilometers will the car travel in 2 hours? assume that 1 mile is equal to 1.6 kilometers.​

128 Kilometers in 2 hours

Step-by-step explanation:

1 mile is = to 1.6 kilometers

40x1.6 = 64 kilometers which is only 1 hour

64 x 2 = 128 kilometers

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