Simplify the expression 3a + b, when a=1.4 -2x and b=-0.2x + 1.7*

In the diagram below, tan θ = sqrt 3. what is the value of m?

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

(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.