Question

4. Solve the equation: x = (x + 10)
5. Write a Pythagorean triplet whose one member is: (i) 6 (ii)18
6. Write the multiplicative inverse of: (i) -1 (ii) -13/9(ii) 3¹–³ (iv) - 5
7. Identify all the quadrilaterals that have: (i) four right angles (ii) four sides of equal length

Answer 1

Answer:

$x = (x + 10) \\ - x(x + 10) \\ - 0 + 10 \\ 10$

Ans 7: (i)90°+90°+90°+90°=360°

(ii)4+4+4+4=16

(iii)360-18=362

Ans 6:

$- 1 \times - 1 = + 1$

$\frac{ - 13}{9} = - 0.62$

$3 {}^{1 \times 3 } = 3 {}^{3} = 9$

$- 5 \times + 5 = - 25$

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Answer 2

Answer:

Solve the equation: x = (x + 10)

5. Write a Pythagorean triplet whose one member is: (i) 6 (ii)18

6. Write the multiplicative inverse of: (i) -1 (ii) -13/9(ii) 3¹–³ (iv) - 5

7. Identify all the quadrilaterals that have: (i) four right angles (ii) four sides of equal length