In the fifth grade class, 4/5 of the girls have brown hair. of the brown-haired girls, 3/4 of of them have long hair. of the girls with long brown hair, 1/3 of them have green eyes.

part a
what fraction of the girls in the class have long brown hair

part b
what fraction of the girls in the class have long brown hair and green eyes? explain how you found your answer

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Solve this problem! extra ! 3025/5.5 = a/90.75