PEMDAS (parenthesis, exponents, multiplication, division, addition, subtraction).
Answer:
Option a is the correct answer for the above question.
Explanation:
- The above question wants a query that gives the output of the first name and the last name of the employee who has the title as an assistant professor and the name starts with w.
- Then option a is the correct answer which operates like:-
- Firstly the subquery will execute and select the ssn from the professor table which has the title as an assistant professor. It is because the ssn is used as the foreign key in the employee table which needs to find that employee which is the assistant professor.
- Then It fetches the record of the employee table whose name starts with the w and match with the SSN.
- But the other option is not valid because:-
- Options b and d gives the error because it holds equal to symbols with the subquery.
- Option c gives the result of other information.
- Option E states about all option but only a is the correct option.
- Option F states none of the above option but a is the correct option.
Answer:
// program in Python.
#library
import math
#function to find surface area of sphere
def surf_area_sphere(rad):
# calculate area and return it
return 4*math.pi*rad**2
#read the radius of sphere
rad=float(input("Enter the radius of sphere:"))
#call the function to find the Surface area
s_area=surf_area_sphere(rad)
#print the Surface area
print("Surface area is:",s_area)
Explanation:
Read the radius of sphere from user and assign it to variable "rad".Then call the function surf_area_sphere() with parameter "rad".This function will calculate the surface area as "4*pi*r*r" and return it value.Then print the surface area of sphere.
Output:
Enter the radius of sphere:4
Surface area is: 201.06192982974676
They allow users to store files.
They allow users to share files.
They help users organize assignments.
They allow users to clip information from web pages.
Answer:
If you have problem with the site
I think you should probably check in some other time
bcuz for me, sometimes I try to get in and I can't login
I haven't yet seen this problem for me
it could also mean that your internet is slow/not working
Explanation: