The height h in feet of a projectile launched from the top of a 192-foot tall bridge is given by h(t) = 640 + 192 – 16t2, where t is time in seconds. What is the maximum height and how long will it
take the projectile to strike the ground?

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Choose the more precise measurement. 26.4 cm or 8.39 cm