The number 3.14 is a rounded value of the mathematical quantity π. if you replace 3.14 with π, what is the exact formula for the circumference in terms of the diameter, d, and in terms of the radius, r?

The triangles are similar. what is the value of x? show your work.

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.