Which statements are true the ordered pair (1, 2) and the system of equations?

y=−2x+-4
7x−2y=3

select each correct answer.

the ordered pair (1, 2) is a solution to the system of linear equations.

when (1, 2) is substituted into the second equation, the equation is false.

when (1, 2) is substituted into the first equation, the equation is false.

when (1, 2) is substituted into the second equation, the equation is true.

when (1, 2) is substituted into the first equation, the equation is true.

the ordered pair (1, 2) is not a solution to the system of linear equations.

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

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?