Answer:
The program in C++ is as follows:
#include <iostream>
using namespace std;
int perimeter(int side1, int side2, int side3){
return side1+side2+side3;
}
struct Triangle {
int side1; int side2; int side3;
};
int main(void) {
int side1, side2, side3;
cout<<"Sides of the triangle: ";
cin>>side1>>side2>>side3;
struct Triangle T;
T.side1 = side1;
T.side2 = side2;
T.side3 = side3;
cout << "Perimeter: " << perimeter(T.side1,T.side2,T.side3) << endl;
return 0;
}
Explanation:
See attachment for complete code where comments are as explanation
The complete program is to define a boolean method that returns true if all elements of an array are negative, or return false, if otherwise
The method in java, where comments are used to explain each line is as follows:
//This defines the method
public static boolean chkNegative (double[] myArr) {
//This initializes a boolean variable
boolean isNeg = true;
//This iterates through the array
for (int i = 0; i < myArr.length; i++) {
//If the array element is 0 or positive
if (myArr[i] >= 0) {
//Then the boolean variable is set to false
isNeg = false;
//And the loop is exited
break;
}
}
//This returns true or false
return isNeg;
}
Read more about boolean methods at:
brainly.com/question/18318709
1.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element that reacts with water to produce a lilac flame
2.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element used as an inert atmosphere
3.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element that has a valency of 3
4.Write a balanced chemical equation for the reaction between potassium and water. (Non-anonymous question). .
(1 Point)
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5.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element with a fixed valency of 2 that not is not in group 2
