Question

class 10th maths questions​

Answer 1

1. If denominator of the fraction can be expressed in

${2}^{m} \times {5}^{n}$

Then it has a terminating decimal expansion.

a)$\frac{33}{50} = \frac{33}{2 \times {5}^{2} }$

Since 50 = 2¹ × 5², it hs a terminating decimal expansion

b) $\frac{66}{180} = \frac{66}{ {2}^{2} \times 5 \times {3}^{2} }$

It has a non terminating decimal expansion

2. c) 2 decimal places since the maximum power is 2

3. Degree of quadratic equation is 2

4. Yes they form an A.P

a = First term = 7

d = Common Difference = 10 - 7 = 3