Question

Can you help me with these to guy? If possible also the working out

Answer 1

Q5) 6.5833 (rounded to nearest 4 d.p.)

Q6)
`(3)/(10)`

Explanation:

Q5)
`\sqrt{2.38 + 6.4^(2) }` =
`√(2.38 + 40.96)`

=
`√(43.34)`

≈ 6.5833 (rounded to nearest 4 d.p.)

Q6) When working with mixed numbers, I would change them to improper fractions first for easier calculations.

1
`(3)/(4)` ×
`(6)/(35)` =
`(7)/(4)` ×
`(6)/(35)`

=
`(42)/(140)` (Simplify by dividing by 2)

=
`(21)/(70)` (Simplify by dividing by 7)

=
`(3)/(10)`

Answer 2

(7/4) (6/35)
=(1/4) (6/5)
= (1/2) (3/5)