one book weighs 2,180 grams. if a box contains 10 books and you know the weight of the box is .25 kilograms, what is the total weight of the box (books included) in kilograms

100 points, hi, i’m not sure how to get the equation from the graph and table.

Which expression is rational? 6. , square root two, square root 14, square root 49

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b