State whether each of the following is true or false. If false, explain why h) All arguments following the format control string in a printf function must be preceded by an ampersand (&).

What is wrong with this function ?

What does the following function do? float hypot(float x, float y) { return sqrt(x*x+y*y); }//end of hypot Write a statement in c++ to call this function with arguments a and b and stores the final result in c.

(a) Write the C++ function, operator+(const Matrix& b) const, which returns the matrix *this + b.

How can we pass argument to a function by reference instead of pass by value?

-Convert SES variable to a factor and assign the value labels “low”, ”middle” and “high” to the 3 levels of thevariable. Then -Define the variables complic, comorb, depressi, diabetes as factors. For all these factors, a zero means “no” and a 1 means “yes”. Assign these value labels through the function factor() and check the change using str()

State which of the following are true and which are false. If false, explain why.a) Function fscanf cannot be used to read data from the standard input.