Answer:
Could u state this more clearly
Explanation:
Calculate the sum of the first 5 positive odd integers: Let's do this in our head first, so we can check if our code is right or not!
The first positive 5 odd integers are: 1, 3, 5, 7, 9
Sum these to: 25
int sum = 0, k; <------These just declare our variables, telling the program 'Hey, I'm going to use 'sum' and 'k' to store data.
for (k = 1; <---We're going to repeat the following code, and we're starting at 1
k <= 10; <---- We're going to continue to repeat until we greater than 10.
k += 2) <------ Every time we do a loop, we're going to add 2.
{ sum += k; } <---- We're going to increase the number inside "sum" by the number inside "k"
Let's run this and see what happens. Remember, we keep going until we hit more than 10.
Round 0: k = nothing, sum = 0 (before we start the loop)
Round 1: k = 1, sum = 1
Round 2: k = 3, sum = 1+3 or 4
Round 3: k = 5, sum = 4 + 5 or 9
Round 4: k = 7, sum = 9 + 7 = 16
Round 5: k = 9, sum = 16 + 9 = 25
Round 6: k = 11, sum = 25 + 11 = 36
Well, we can tell here that round 5 was correct, but round 6 is not correct. And our loop condition says <=10, which means we have to do Round 6.
This means we did it one too many times. Our ending condition should be <10, instead of <=10.
Option B
Answer:
Here is the Python program:
stock_prices = input().split() #to take input and splits it into a list
for price in stock_prices: #iterates through stock_prices
print("$",price) #prints each value of stock_prices with a dollar sign
Explanation:
The program is well explained in the attached comments. I will explain the logic of the program with the help of an example:
Suppose the user enters the following input as stock_prices values
34.62 76.30 85.05
input() method is used to take input from user
split() method is used to split or break this input string and returns a list of strings as:
['34.62', '76.30', '85.05']
Now the statement for price in stock_prices: iterates through each item of the list and print("$",price) prints each value of list with a dollar sign on the output screen as:
$ 34.62
$ 76.30
$ 85.05
Answer:
C. Ethernet over multi mode fiber .
Explanation:
Given that the distance to be covered is 1 km. Multi-mode optic fiber is best suited for short distances of up to 2 km and can withstand harsh environments with less signal attenuation. Single mode fiber is best suited long distance of up to 200 km or more and is expensive as compared to multi-mode fiber Ethernet over twisted pair is best for indoor use and can only cover very short distances. Although UTP and STP are relatively cheap they cannot withstand harsh environments without great signal loss.
