Which statement best describes how to determine whether f(x) = x2 – x + 8 is an even function? determine whether –x2 – (–x) + 8 is equivalent to x2 – x + 8. determine whether (–x)2 – (–x) + 8 is equivalent to x2 – x + 8. determine whether –x2 – (–x) + 8 is equivalent to –(x2 – x + 8). determine whether (–x)2 – (–x) + 8 is equivalent to –(x2 – x + 8).

the fist one is not equalvalent but i think th second one isand the third isnt definetly or the last one is i think. hope this !

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

no this is a nonlinear negative