Question Bank

Achieved

Solve for $x$ in the equation $\log_2(x) = 4$.

Achieved

Find the value of $m$ if $\log_3(2m-5) = 2$.

Achieved

Solve the following equation for x: $\log_x(64) = 3$.

Achieved

Simplify fully: $4\log(y^2) - \log(y^5)$.

Achieved

Find the value of the expression: $2\log_5(125) - \log_5(\frac{1}{25})$

Merit

Find the value of $\log_{\sqrt{7}}(\frac{1}{49})$. You must show some algebraic procedure.

Merit

Simplify fully $\frac{5\log(u^4)}{\log u}$.

Merit

Simplify the following expression fully, writing your answer as a single logarithm: $\log(4a) + 2\log(\frac{a}{8})$.

Excellence

The magnitude, $M$, of an earthquake is measured on the Richter scale using the formula $M = \log_{10}(\frac{I}{I_0})$, where $I$ is the intensity of the earthquake and $I_0$ is a reference intensity. An earthquake in City A has a magnitude of 7.2. An earthquake in City B has a magnitude of 5.6. How many times more intense was the earthquake in City A compared to the one in City B?

Excellence

Solve the equation $(\log_2 x)^2 + \log_2 (x^3) = 10$.

Excellence

Find the value of x if $2\log_3(x) - \log_3(x+2) = 1$.

Excellence

Solve the following system of simultaneous equations for $x$ and $y$.

$\log_2(x) + \log_2(y) = 5$ $\log_2(x^3) - \log_2(y^2) = 5$