A tree casts a 20 foot shadow. brian is 6 feet tall and casts a 4 foot shadow. how tall is the tree.

Simplify cos^2x-1/1-cos^2x

Phil has 3 times as Many rocks as Peter together they have 48 how many more rocks does Phil have than Peter

How do you write 23.6 in scientific notation?

The local bank employs 36 individuals of which 15 are smokers. What is the ratio, in simplest form, of the non-smokers to the total number of employees at the local bank?

The length of a rectangle is 12 cm more than its breadth. If the perimeter is 48cm. What is its length and breadth?

What is the correct plural form of "una bebida popular"? una bebidas popular una bebidas populares unas bebidas populares unas bebidas populares

Identify the level of association and correlation in the scatterplot.

A manager is putting together a team of employees to tackle a special project. The team will consist of a team leader, an assistant to the leader, and 4 other team members whose positions are interchangeable.

Bob just turned 66 years old and is considering retirement. His average annual salary over the last 35 years is $50,760. Assuming that he will receive 42% of his average salary, what will be his annual Social Security benefit?

Given that f (x) = 13x^2+156, find x