Which valve of x solves the equation cos x°=sin (20°+x°) where 0

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

If there are 3.281 feet in 1 meter, how many inches are in one centimeter

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.