Assume that f is a one-to-one function. (a) if f(3) = 15, what is f −1(15)? (b) if f −1(6) = 4, what is f(4)?

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.

If the perimeter of the square equals the perimeter of the regular pentagon. each side of a pentagon is 16cm long. how long is each side of the square?