Correct Answer: B. -1

Explanation

\(K\sqrt{28}+\sqrt{63}-\sqrt{7}=0\\

2K\sqrt{7}+3\sqrt{7}-\sqrt{7}=0\\

2K\sqrt{7}=-2\sqrt{7}\\

K=\frac{-2\sqrt{7}}{2\sqrt{7}}\\

K=-1\)

Correct Answer: A) 6.7%

Explanation

This question is asking about how to calculate the percentage change in the Consumer Price Index (CPI) between two different years, 1989 and 1990. The CPI is a measure of the average change in prices of goods and services over time.

To find the percentage change in the CPI, we first need to subtract the CPI of 1989 from the CPI of 1990, and then divide the result by the CPI of 1989. We then multiply the quotient by 100 to get the percentage change.

Using the values given in the question, we can calculate the percentage change in the CPI as follows:

(130.7 - 124.0) / 124.0 x 100% = 6.7%

Therefore, the correct answer is Option A: 6.7%.

It's important to note that the CPI is used to measure inflation, which is a sustained increase in the general price level of goods and services in an economy over time. Inflation can have significant economic impacts, such as reducing the purchasing power of money and affecting the cost of living for individuals and households.

Explanation

(i) Shortage of funds: the involvement of the United Nations Organization in large-scale operations results in a shortage of fund

(ii) Sovereignty of nations: The organization cannot effectively enforce its decisions because member states are not willing to surrender their sovereignty to its authority.

(iii) The veto power: Each of the five permanent members of the Security Council has veto power. The refusal of any of them on any issue under consideration.

(iv) Differences in ideology: There are differences in ideology, culture, politics and methods used in pursuing economic goals. This may negate the evolution of lasting peace in the world.

(v) Difficulty in achieving the goals of the organization: The achievement of the goals of collective security can be jeopardized by negative action by any of the Big- Powers - USA, Russia, Britain, France and China- determining the direction of events in the world.

(vi) No permanent Military force: The absence of a permanent military force is affecting its peace-keeping operations worldwide. The member countries provide troops only when called upon.

(vii) Problem of arms race: The UN has failed to find a permanent solution to the arms race, Many nations spend so much on the manufacture of weapons of war, e.g USA, Russia, France, Britain, Even some countries like Iraq and Iran equally do the same thing.

(viii) The presence of some regional/sub-regional groupings: some of these groupings like AU, ECOWAS, EEC, and the presence of some military pacts or alliances, e.g. NATO, WARSAW, and ECOMOG, have weakened commitment to the ideals and objectives of the UN

(ix) International Monetary Fund (IMF): It is an agency of the UN. Its neo-colonialist policies and conditionalities have crippled the economies of most states globally, especially the developing ones.

(x) Constant border clashes/disputes: These are common among member nations, e.g India and Parkistan, France and Madagascar, etc.

Correct Answer: B. League Nations

Correct Answer: A. Antonio

Correct Answer: A. del-credere agent

Correct Answer: B. product

Correct Answer: C. \(\frac{1}{2}\)

Correct Answer: D. homogeneity

Explanation

Different groups within a country may adopt federalism as a means of preventing the over-concentration of power at the centre. This is one way in which they can prevent the country from drifting into dictatorship. States with a common historical background can come together to form a federation.

Homogeneity is the quality or state of being all the same or all of the same kind.

Correct Answer: A. N6,150