Alex trained four days for a 5 mile race. He ran 2.75 miles Tuesday, 3 miles Wednesday, 3.4 miles Thursday, and 5 miles Friday. How far did he run while training?
miles

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

What value of x will make the triangles similar by the sss similarity theorem?

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)