Which of the following is the solution of the given system of equations?
2x + 2y + z = -12

x + z = 20

x = 1

a) (1, -33/2, 19 )

b) ( 1, 33/2, 19)

c) (1, -17, 19)

d) (1, -25, 21)

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?