Let f (x) = cos-1x. Then the domain of f (x) is [-1,1] and the range is all real numbers.

true or false?

What can be factored from 12g²-27h²

michael bought 1500 seeds for his three gardens. the ratio of the number of seeds planted in garden a to the number of seeds planted in garden b to the number of seeds planted in garden c is 3:5:7.

A brick has a mass of 2,000 grams. What is the mass of the brick in kilograms?

You are ordering a pizza and soda for the big game. A deep dish pizza costs $10.25, and a two-liter of soda is $2.00. For each touchdown that the Eagles score on Sunday, Vinny's Pizza lowers the cost by $1.50.

Miguel claims that the product of any fraction and 5/8 will always be less than 5/8

Gavin's anemometer measures the wind speed at 44.14 kilometers per hour. 4 times the wind speed 5 hours ago. What was the wind speed 5 hours ago?

Find the next three terms in the numbers sequence 3,10,19,26,_,_,_.

Simplify the expression cosxcscxtanx

Simplify (2^3) ^-2. 1) - (1/64) 2) 1/64 3) 2 4) 64

And is currently h years old. Bill is currently 2h years old and Charles is currently eight years old. Find an expression for each person's age after h years. Then find an expression for the sum of their ages after h years.