Which formula should be used to find the circumference of a circle? C = pi d C = 2 pi d C = pi r C = StartFraction pi over d EndFraction

How do you get the answer to 7-2x2=k

Firefighters sprayed a 9 inch thick layer of foam over a burning rectangular region 10 yards wide and 50 yards long. What volume of foam was used on the fire?

A coordless phone costs $55 plus $25 for each extra handset. what is the cost of a coordless phone and 3 extra handsets

Factorise 400x^2-49y^2

What is the range of this function? { (3,2), (-6,2), (7,3), (8,4) } A) {2, 3, 4} B) {7, 3, 8, 4} C) {3, - 6, 7, 8} D) {3, 2, - 6, 2}

Y = - 4 * 2x is a reflection of y = - 1/4 * 2x. True or false?

A company is designing a new cylindrical water bottle. The volume of the bottle will be 186 cm the height of the water bottle is 7.9cm what is the radius of the water bottle

One sheet of stamps is shown at the right. Joe needs to buy 50 stamps to send out invitation for her graduation party. Will 2 sheets of stamps be enough? How do you know

Angle θ is in standard position. If tanθ < 0 and cosθ = - 4/5, find sinθ.

Increase £600 by 15%?