Suppose variables roll1 = 3 and roll2 = 4, which of the following will be evaluated as true?
1 answer:
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Answer:
import math
angle = float(input('Enter Angle: '))
shadowLength = float5(input('Enter Shadow Length: '))
tree_height = math.tan(angle)*shadowLength
print('Tree Height = {}'.format(tree_height))
Explanation:
From the equation given, the first step is to derive the equation for calculating the Tree Height.
In order to calculate the tangent of an angle, the math module has to be imported. math module allows the program to perform advanced math operations.
The program then prompts the user to input values for angle and shadow length.
The inputted values are converted to floats and used in the equation that was derived for Tree height.
Three height is evaluated and the result is printed to the screen
Answer:
#include <iostream>
#include<time.h>
using namespace std;
void sort(int a[20],int n) //selection sort
{
int i,j,temp;
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++) //finds minimum element
{
if(a[i]>a[j]) //swaps minimum element to its right place
{
temp=a[i];
a[i]=a[j];
a[j]=temp;
}
}
}
}
int main()
{
srand(time(NULL));
int arr[20],n=20,i;
for(i=0;i<n;i++)
arr[i]=rand() % 100 + 1; //assigns random number to each array element
cout<<"Before sorting\n";
for(i=0;i<n;i++)
cout<<arr[i]<<" "; //prints array before calling sort func
sort(arr,20); //sort the passed array
cout<<"\nAfter sorting\n";
for(i=0;i<n;i++)
cout<<arr[i]<<" "; //prints array after sorting
return 0;
}
OUTPUT :
Please find the attachment below.
Explanation:
The program above first assigns random number from 1 to 100 to each element of array using rand(). srand(time(NULL)) is used to generate new number every time otherwise same random number will be produced at a time. Then sorting method is called in which selection sort algorithm is used.
Selection sort algorithm finds the minimum element in each pass and place it into its right position. For example - 34,54,12,5 is passed
After Pass 1 - 5 54 12 34
After Pass 2 - 5 12 54 34
After Pass 3 - 5 12 34 54
