The formula v = √ 2.4 r v = 2.4 r models the maximum safe speed, v v , in miles per hour, at which a car can travel on a curved road with radius of curvature r r , in feet. A highway crew measures the radius of curvature at an exit ramp on a highway as 410 feet. What is the maximum safe speed?

b, 20 yards

step-by-step explanation:

answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8

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