Y = -x + 4
2x + 2y = 8
independent
inconsistent
equivalent

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

What is the pattern in the values as the exponents increase?

Given this information, which expression must represent the value of b?