Zworykin invented a television transmitting and receiving system employing cathode ray tubes.
Answer:
if ((b*b - 4*a*c)<0)
cout << "no real solutions";
return;
Explanation:
To check if "b squared" – 4ac is negative, we use the expression if ((b*b - 4*a*c)<0). This expression evaluates the 'bsquared' and substracts '4ac' from it. It then compares the resulting value with zero. if it is less than zero it means it is a negative number, so it executes the statement following cout << "no real solutions"; and returns
I think the correct answer from the choices listed above is option A. The machine that will work <span>best to dig a hole in the soil would be a screw. The other two choices are not really used to dig a hole in the soil. Hope this answers the question. Have a nice day.</span>
