1. a. (15 pts) Determine the single-precision representation in IEEE format of the decimal number 27.875. IEEE format representation 45ED8000. interval [4,5. V19 to within 10-2 b. (10 pts) Determine the decimal number that has the hexadecimal 2. a. (10 pts) Show that the function (x) 2-19 has a zero in the b. (15 pts) Use the bisection method to find an approximation to 3. Consider the function fx)4-112 -4x + 11. a. (10 pts) Show that f(x) has exactly one zero in the interval 12,4). b. (15 pts) Use Newton's method to find the zero of /(x) in the interval [2,4]. Perform only three iterations