Patterns

Q. completing the square method

Q. explain about conjugate points in circle and related impor†an t points

Q.

Question 5 (ii)
The following table gives the life times of neon lamps:
$\begin{array}{cc}\text{Length (in hours)}& \text{Number of lamps}\\ 300-400& 14\\ 400-500& 56\\ 500-600& 60\\ 600-700& 86\\ 700-800& 74\\ 800-900& 62\\ 900-1000& 48\end{array}$
(ii) How many lamps have a life time of more than 700 hours?

Q. The ones digit of cube of 34 equal

Q.

The square of a positive integer cannot be in the form ( k is an integer) .

Q. The number of integers n(<20) for which n 2 −3n+3 is a perfect square is

Q.

"lines are parallel if they do not intersect" prove this with a suitable diagram.

Q. Fill in the blank with the most appropriate option.
The painters ____ finished their work by tomorrow.

1. have
2. will have
3. won't be
4. were

Q. Fill in the blank with the most appropriate word.
A: Who's going to meet him at the airport?
B: He _________ by our ambassador.

1. is going to be met
2. is going to meet
3. has gone to meet
4. will have been met

Q. 55.How (a+b)3work