Question

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

Answer 1

Answer:

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

Q6) $\frac{3}{10}$

Step-by-step explanation:

Q5) $\sqrt{2.38 + 6.4^{2} }$ = $\sqrt{2.38 + 40.96}$

                           = $\sqrt{43.34}$

                           ≈ 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$\frac{3}{4}$ × $\frac{6}{35}$ = $\frac{7}{4}$ × $\frac{6}{35}$

          = $\frac{42}{140}$ (Simplify by dividing by 2)

          = $\frac{21}{70}$ (Simplify by dividing by 7)

          = $\frac{3}{10}$

Answer 2

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