Question

Hi there!

urgently need answers for the ticked q's in the image.

Answer 1

Answer:

5=3to the power4 is greater

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 2

Step-by-step explanation:

Q.1 -  7³

= 7 × 7 × 7

= 343

Q.2 (iii) 3³ × 5²

= 27 × 25

= 675

(viii) (4 × 3)³ = (12)³

= 1728

Q.4 (ii) (-3/4)³ × (2/3)⁴

=  - 27/64 × 16/81

= -1/12

Q.5 (iii) 4³ or 3⁴

4³ = 64

3⁴ = 81

∴ 4³ < 3⁴

Q.7 (ii) (b - a)³

= b³ - a³ - 3a²b + 3ab²

Q.10 (i) 2ᵃ = 64

2ᵃ = 2⁶

∴ a = 6

5ᵇ = 625

5ᵇ = 5⁴

∴ b = 4

(ii) 2ᵇ × 5ᵃ

= 2⁴ × 5⁶

= 16 × 15625

= 250000

Hope it helps!

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