The slope of the line below shown is -4
Answer:
.The cost of one meter of the wire is _<em><u>Rs18</u></em>_______.
Step-by-step explanation:
the cost of 19/4 m of wire = Rs.171/2
the cost of 1m of wire = Rs.171/2×4/19=Rs18
Triangle, then a square, so the pattern is more or less ▲ ■ ▼ ■ ▲ ■ ▼ ■ ▲ ■ ▼ ■ and so on.
notice, the first is the triangle, the second is the square, so all ODD integers, 1,3 5, 7 and so on, will be triangles.
and all EVEN integers will be squares, so, the 50th shape is, well, you already know.