The word “cumulative” means that something builds on itself. Which example best shows how scientific knowledge is cumulative?

A. Watson and Crick worked together to come up with the model of DNA.

B. Kepler based his laws of planetary motions off of Newton’s law of gravity.

C. Hardy and Weinberg independently came up with a population equation.

D. Darwin and his grandfather both worked on the ideas of survivability.

PLEASE HELP ME

B

Explanation:

Cumulative means that someone came up with an idea first and someone later built an idea off of that.  Kepler basing his laws off of Newton's laws is the only option that uses cumulative knowledge.  Everything else is either completely independent or working together neither of which is cumulative.

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

age range would be the answer