5. Which of the following statements is/are true of the major schools of economic thought? i. Keynesians believe in the use of macroeconomic tools to stabilise the economy whereas the others do not. ii. Monetarists believe that monetary policy is more effective than fiscal policy in eliminating employment, whereas Keynesians believe the opposite. iii. Supply-siders believe that incentives to work, save and invest are more important than macroeconomic demand manipulation in managing the economy. iv. The classical economists believed that the monetary and real sides of the economy were entirely separate, whereas the other schools believe that the monetary sector can affect the real economy, at least in the short run.

Challenge if \( x-\frac{1}{x}=i \quad \) then \( x^{32}+x^{-32}=\cdots \) \( \begin{array}{llll}\text { a.) }-1 & \text { b.) Zero } & \text { c.) } 1 & \text { d.) } 2\end{array} \)

340 If the straight line \( L_{1} \) passes through the two points \( (3,1) \) and \( (2, k) \) and the straight line \( L_{2} \) makes with the positive direction of the \( x \)-axis a positive angle whose measure is \( 45^{\circ} \), then find \( k \) if the two straight lines \( L_{1} \) and \( L_{2} \) are : \( \begin{array}{ll}\text { [1] parallel } & \text { [2] perpendicular }\end{array} \)

ACTIVITY \#4 A. Change the statements to an If-then or conditional sta hypothesis and the conclusion. 1. You pass Grade 8, you will be in grade 9 next school year 2. An equilateral triangle is equiangular. 3. All acute angles measures less than 90 degrees. 4. Circles with the same centers are concentric circles. 5. The freezing point of temperature in degree Celsius is ze B. Determine if the conditional Statement is true. If not giv 1. If three points are coplanar, they belong to the same pl 2. If you are tall, you are a basketball player. 3. If two planes have no point in common, they are paral 4. If you travel in other country, then you need a visa 5. If a figure is a triangle, then the angles are acute.

3) Hullar intervalo (s) solvein de la inecoucion dada. \( \quad \) Seno: a) \( 2 x-3(x-1)+4(x+2) \leq 3 x+2(3 x-2) \)

2. Diberi \( \left(\frac{1}{9}\right)^{n} \times 27=3 \), cari nilai bagi \( n \). Given that \( \left(\frac{1}{9}\right)^{n} \times 27=3 \), find the value of \( n \).