How many white keys does a standard modern piano have? 1=102 2=52 3=88

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5