An elderly grandfather does not get out as much as he formerly did. Although he is healthy and still drives, he tends to associate with family and a few close friends, whereas in the past, he was busy with social activities. He seems satisfied with his life, but his family is worried that his social circle is too limited and that he may be unhappy yet unwilling to talk about his unhappiness. Discuss briefly the cognitive, social, and emotional changes that occur in later adulthood.

Answer:

Iceland has a relatively mild and steady climate despite its high altitude Because of oceanic influences such as the North Atlantic DriftThe rugged northern coast offers many good natural harbors  Icelandic rivers are mainly of two types: glacial and clear-water rivers.

Explanation:

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Answer:

Personal Opportunity Cost - Spare non drive time sacrifised

Social Opportunity Cost - Fuel efficiency (high pollution), Road Traffic (Congestion issues).

Explanation:

Opportunity Cost  is the cost of next best alternative, foregone while choosing an alternative. Bill can commute either by bus, or by self drive.

If Bill drives his car, opportunity cost for him is - the spare time sacrifised, that he could have used while car drive in some other activity (eg reading, listening music).

Opportunity Cost for society is - the fuel utilisation & road traffic management  efficiency sacrifised, by using private instead of public transport. This leads to more pollution, more congestion on roads.

The answer is C. Clinical or counselling

He enjoys interacting with clients which is what he would do on a daily basis in a clinical or counselling psychology setting. He remains calm during high stress situations at the clinic therefore he will be able to interact with his clients in a way that makes them feel safe.

Explanation:

it was an important breakthrough as it allowed villagers to stay in one area for food and to create food surplus. this led to less starvation and eventually led to specialization. without the agricultural revolution the clans would have been unable to develope into a complex society.

Answer:

sedimentary rocks do

Explanation:

It is accurate to say that the optimal solution is unaffected by changes in the value of an objective function coefficient.

What is coefficient?

• A coefficient refers to a number or quantity placed with a variable. It is usually an integer that is multiplied by the variable and written next to it. The variables which do not have a number with them are assumed to be having 1 as their coefficient. For example, in the expression 3x, 3 is the coefficient of x but in the expression x2 + 3, 1 is the coefficient of x2. In other words, a coefficient is a multiplicative factor in the terms of a polynomial, a series, or any expression. Observe the following expression which shows that 5 is the coefficient of x2 and 8 is the coefficient of y.
• A coefficient can be positive or negative, real or imaginary, or in the form of decimals or fractions. Another definition of coefficient says, “Any number with which we multiply a variable." For example, in the term 9.3x, 9.3 is the coefficient of the variable x, and in -5z, -5 is the coefficient.

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