Solve the system of equations and choose the correct answer from the list of options. (4 points) 2x + y = −4 y = 3x + 2 negative 6 over five comma negative 8 over 5 negative 8 over 5 comma negative 6 over 5 negative 5 over 6 comma negative 11 over 5 negative 11 over 5 comma negative 6 over 5

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?

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.