Pentaprism is a five sided prism with two silvered surfaces giving a non-stop deviation of all rays of light through 90 degress. Used in viewfinders of single-lens reflex cameras
# Written in python
a = int(input("Enter an integer: "))
b = int(input("Enter an integer: "))
sum = a + b
# subtract the smaller number from the bigger
if a < b:
dif = a - b
else:
dif = b - a
prod = a * b
print("The sum is", sum)
print("The dif is", dif)
print("The product is", prod)
Answer:
1. More access to data
2.convenience
3. Easy creation of BI solutions
4. Report creation
5. Saves time
Explanation:
A data warehouse can be described to be an electronic storage system that contains large amount of facts and information which sources for and also maintains data from different sources; either external or internal.
The most important reason for a data warehouse is for it to store great amounts of data to be used for query and also to be used for analysis.
Why do we use a data warehouse?
1. Users have more access to data due to the integration of various sources of data. It makes use of real time data facts
2. You can conveniently store and also create metadata
3. Business intelligence solutions can easily be created using data warehouses.
4. Users can easily create their own reports
5. Data warehouses makes accessing different data sets faster. It is a time saver as business users are not going to spend time trying to retrieve data from various sources.
It's kind of a mix between A and C there are some defragmenting tools that show you how much of your PC is wasted by program files. And in some defragmenting tools, it shows you all the files that are fragmented and gives you the option to defrag them or not. So the best answer would be A.
