Question

Q1.Two complementary angles are in the ratio 4:5. Find the measure of each angle.
Q2.is -3-215) a positive rational number or a negative rational number?
Q3. Add 3a+5b-4c and 2a-3b+c.
Q4.A box has 4 red balls and 3 blue balls, find the probability of getting (i)a red ball (ii) a green ball.
Q5. Find the reciprocal of 37.
QB. Do Sums. (Do any Six) (3x6=18)
Q1.In the given fig. find X
*+20
fel
Q
Q2. From the sum of 90°-3c² and 2b²+bc-2c² subtract c?+2bc-b2.
03. Find the value of m if ($){})=(5) ****
Q4. Order from least to greatest =
05.An ordinary die is rolled. What is the probability that the number on the upper face is
(i) an even no. (ii) multiple of 2 (iii) greater than 6.
06. The product of two rational number is – 1is af one of them is = find the other.
Q7. In the given figure , write a pair of
1. Alternate angles
2.Co-interior angles
3.Coresponding angles​

Answer 1

Step-by-step explanation:

1) 40° and 50°

2)negative

3)a+3b-5c

4) i) 4/7 i.e 0.67

ii) 0/7 = 0

5)1/37