If A+B+C=180 then prove that

Cos3Acos3B+cos3Bcos3C+cos3Ccos3A=1

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

the diver is 33 feet below the surface.

step-by-step explanation:

hope this

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.