Hello <span>Abigailguzman6347</span><span>
</span>Answer: If you use a surrogate key, you must ensure that the candidate key of the entity in question performs properly through the use of "unique index" and "not null" constraints.
Hope This Helps!
-Chris
Answer:
See explaination
Explanation:
#Run the code in the python version 3.x.
#Define the function.
def shampoo_instructions(num_cycles):
#Check the cycles to be greater than 1.
if num_cycles < 1:
#Display the statement.
print('Too few.')
#Check the cycles to be greater than 4.
elif num_cycles > 4:
#Display the statement.
print('Too many.')
#The else part.
else:
#Initialize the variable.
N = 1;
#Begin the for loop.
for N in range(N, num_cycles+1):
#Print the result.
print(N , ": Lather and rinse.")
#Print the statement.
print('Done.')
#Call the function.
shampoo_instructions(2)
Answer:
A. the BY statement.
Explanation:
The BY statement aids the procedure MEANS to develop the tree for the current BY group only, thereby analyze the stats, and clean the tree prior to the start and development of the next BY group.
However, without the BY statement, procedure MEANS develops its AVL tree for both the whole file and all sector estimates crossings established in CLASS.
Hence, in this case, the correct answer is the BY Statement.
Answer:
if(revenue.cents - expenses.cents < 0){
profit.dollars = revenue.dollars - expenses.dollars - 1;
profit.cents = 1 - revenue.cents - expenses.cents;
}
else{
profit.dollars = revenue.dollars - expenses.dollars;
profit.cents = revenue.cents - expenses.cents;
}
Explanation:
We know that profit is given as: revenue - expenses from the question.
From the given expression above;
if(revenue.cents - expenses.cents < 0)
then profit.dollar will be revenue.dollars - expenses.dollars - 1; the 1 is to be carry over to the cent part. And the profit.cent will be 1 - revenue.cents - expenses.cents;
else the profit.dollars and the profit.cent is computed directly without needing to carry over:
profit.dollars = revenue.dollars - expenses.dollars;
profit.cents = revenue.cents - expenses.cents;
