On each bonce, a ball rises to 4/5 of its previous height. To what height will it rise after the third bounce, if dropped from height of 250 cm?

128 cm

Step-by-step explanation:

After the first bounce

height = × 250 = 4 × 50 = 200 cm

After the second bounce

height = × 200 = 4 × 40 = 160 cm

After the third bounce

height = × 160 = 4 × 32 = 128 cm

the answer should be a. snail

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)