Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range.
y = -5x2 - 4x + 1
a. D: all real numbers
D: (20
R: 51.8)
R. all real numbers
b. D: all real numbers
D: all real numbers
R (218)
R: 50.2)

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

Use circumcenter theorem to solve for the given values

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?