Question

4. Solve the following equation

(a)

2

x

- 3 = ( - 5 ) (b) (- 4 ) = 5 ( p – 2 )

5. Triangle ABC is right angled at C. If AC=4cm and BC= 3cm, find the length of AB​

Answer 1

Answer:

4.

a)

2x - 3 = -5

2x = -5+3 = -2

x = -2/2 = -1

b)

-4 = 5(p-2)

-4 = 5p - 10

5p = -4 + 10 = 6

p = 6/5

5.

Given:

AC = 4cm

BC = 3cm

To find :

AB( Hypotenuse ) = ?

Pythagoras Theorem:

Square of Hypotenuse = Sum of squares of other two sides

AB² = AC² + BC²

AB² = 4² + 3² = 16 + 9 = 25

AB = √25 = 5 cm

Length of AB = 5cm

Hope it helps you:)

Answer 2

Step-by-step explanation:

a.2x -3 = (-5)

(trasposing -3 on rhs therefore sign change)

2x = -5 +3

2× = -8

(divide by 2 on both the sides)

× = -4