Answer:
x = -1/2
Explanation:
<em>Hey there!</em>
To solve for x we need to simplify the following,
3x - 5 = 7x - 3
-3x to both sides
-5 = 4x - 3
+3 to both sides
-2 = 4x
Divide both sides by 4
-1/2 = x
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<em>Hope this helps :)</em>
Answer:
a simple IF statement using Regex
Explanation:
In any coding language, a good control procedure for this would be a simple IF statement using Regex. In the IF statement you can grab the account code and compare it to a regular expression that represents the correct format. IF the account code is in the correct format (matches the regular expression), then you go ahead and save the account code for use. Otherwise, you would output an error and ask for another account code. This will prevent the program from trying to use an account code that is not valid.
Answer:
B. 1 6 3
Explanation:
Given function definition for calc:
void calc (int a, int& b)
{
int c;
c = a + 2;
a = a * 3;
b = c + a;
}
Function invocation:
x = 1;
y = 2;
z = 3;
calc(x, y);
cout << x << " " << y << " " << z << endl;
- Since x is passed by value, its value remains 1.
- y is passed by reference to the function calc(x,y);
Tracing the function execution:
c=3
a=3
b=c+a = 6;
But b actually corresponds to y. So y=6 after function call.
- Since z is not involved in function call, its value remain 3.
So output: 1 6 3
Answer:
You can enter a URL that (B) Uses localhost as the domain name
Explanation:
Localhost refers to your computer or the computer that is currently in use.
To run a PHP application that is deployed on your computer, the localhost (which has an IP address of 127.0.0.1) is used.
The IP address is called a "loopback" address because all data sent or received revolve around the local computer.
