Sylvia launches a bottle rocket into the air. The function h(t) = 115t – 16t2 + 300 gives the height of the bottle ro in feet, t seconds after it is launched. Using a table or graph, about how many seconds did it take for the bottle rocket to reach a he
of 200 feet? Round your answer to the nearest second.
Please hurry

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

What is the value of x in the following equation? -3x-2=2x+8