Higher June 2019 Paper 1 Q8
8
(a) Work out an estimate for the value of \(\sqrt{63.5 \times 101.7}\) (2)
\((2.3)^6 = 148\) correct to 3 significant figures.
(b) Find the value of \((0.23)^6\) correct to 3 significant figures. (1)
(c) Find the value of \(5^{-2}\) (1)
| Answer | Mark | Mark scheme |
|---|---|---|
| 75 to 81 | B2 | for answer in the range 75 to 81 |
| (B1 | for 60 or 100 or 6000 or 6400 or \(\sqrt{64 \times 100}\)) |
| Answer | Mark | Mark scheme |
|---|---|---|
| 0.000 148 | B1 | for 0.000 148 oe |
Additional guidance
Can use standard form
| Answer | Mark | Mark scheme |
|---|---|---|
| \(\dfrac{1}{25}\) | B1 | for \(\dfrac{1}{25}\) or 0.04 |