Adding which terms to 3x2y would result in a monomial?

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

X+y=-4 x-y=2 use elimination with adding and subtraction