Express this number in scientific notation.
0.5401

2x minus y equals 6, x plus y equals negative 3

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a