Question

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Answer 1

Answer:

Could you please zoom in and take a picture it looks blurred

Answer 2

Answer:

(20) 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25

(21) Yes, 14, 48 and 50 are a Pythagoras triplet

Step-by-step explanation:

(20) 1st odd number = 2x + 1

2nd odd number = 2x + 3

3rd odd number = 2x + 5

4th odd number = 2x + 7

5th odd number = 2x + 9

6th odd number = 2x + 11

7th odd number = 2x + 13

8th odd number = 2x + 15

9th odd number = 2x +17

10th odd number = 2x + 19

11th odd number = 2x + 21

12th odd number = 2x + 23

13th odd number = 2x + 25

(2x × 13) + 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 = 169

(2x × 13) + 169 = 169

26x + 169 = 169

26x = 169 - 169

26x = 0

x = 0/26

x = 0

Hence the 13 numbers are 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25

(21) Hypotenuse (Longest) = 50

Perpendicular = 48

Base = 14

Pythagoras Theorem = B² + P² = H²

LHS = B² + P²

= 14² + 48²

= 196 + 2304

= 2500

RHS = H²

= 50²

= 2500

LHS = RHS hence 14, 48, 50 is a Pythagoras triplet.

Hope it helps