Answer: In the carrot scenario, Derek is able to find carrots at the price he wishes to pay because one competitor offers a lower price. That competitor is successful in making a sale and competition causes the consumer to keep looking until the desired price is found. Likewise in the computer scenario, Melissa still searches in a number of places for the desired computer. Competition again is driving the consumer action of shopping around. However, in this case, the consumer is unable to find the desired price and ultimately decides that since all competitors are asking the same price, this must be a fair market price. In that case Melissa wants the model she wants and is willing to pay a higher price for it, but only after exhausting all of her available options by checking out many competitor prices.
Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. Currents are cohesive streams of seawater that circulate through the ocean.
Uh can you upload a picture ?
The answer is Count. Count is an aggregate method in SQL that returns the number of rows for a specified column that have non-null values.
<h3>What is the Meaning of Null?</h3>
When a field in a database has no values at all, this is known as null and indicates that the field’s value is unknown.
A null value for a number field, text field, or space value is different from a zero value. Null indicates that no value has been recorded in a database field.
A value and a null cannot be compared. The Structured Query Language query cannot be written as SELECT * FROM Customer where email Address=null, for instance, if it is intended to obtain all customers without email addresses from a Customer Addresses table.
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Answer:
b. A think tank offering military consulting for the U.S. government.
Explanation:
