Given the identity tanx=sinxcosx and the relationship between the sine and cosine of complementary angles, what is tan (90°− a)?
a) 1cosa
b) 1sina
c) 1tana
d) sinacosa

Which of the following is the correct ratio for converting kilograms to grams

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Can any one me with the answers to these questions asap?