The distance between dallas and fort worth on a map is 7.5 centimeters. the map uses a scale in which 1 centimeters represents 30 kilometers. what is the actual distance between these two cities in kilometers?

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

One positive number is 9 more than twice another. if their product is 95, find the numbers

What statement is true? 2x^2-9x+2=-1