using the techniques from section 1.6 applications of linear systems, balance the following chemical reaction:
nahco3 + h3c6h5o7 -> na3c6h5o7 +h2o +co2

How many lines can be drawn through points j and k? 0 1 2 3

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

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright