If one gallon of paint covers 825 sq. ft, how much paint is needed to cover 2640sq. ft. ?

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Which function has the domain x> -11?

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle