What two units are used to measure the frequency and amplitude of a sound wave?
A. Hertz is a measure of frequency, and a decibel is a measure of amplitude.
B. A decibel is a measure of frequency, and hertz is a measure of amplitude.
C. The quantization is a measure of frequency, and sampling is a measure of amplitude.
D. Sampling is a measure of frequency, and the quantization is a measure of amplitude.

In which phase does software coding and testing happen in the spiral model? the spiral model does not have a separate testing phase. both, software coding and testing occurs during the phase.

Consider the following declarations (1, 2, 3, 5, 7)class bagtype{public: void set(string, double, double, double, double); void print() const; string getstyle() const; double getprice() const; void get(double, double, double, double); bagtype(); bagtype(string, double, double, double, double); private: string style: double l; double w; double h; double price; }; a.) write the definition of the number function set so that private members are set according to the parametersb.) write the definition of the member function print that prints the values of the data membersc.) write the definition of the default constructor of the class bagtype so that the private member variables are initialized to "", 0.0, 0.0, 0.0, 0.0, respectively d.) write a c++ statement that prints the value of the object newbag. e.) write a c++ statement that declares the object tempbag of type bagtype, and initialize the member variables of tempbag to "backpack", 15, 8, 20 and 49.99, respectively

Pl i need the answer now ! which one of the following is considered a peripheral? a software b mouse c usb connector d motherboard