8
450
45°
X
Find the value of x.
A. 4
B. 8
C. 42
D. 86

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

X+y=-4 x-y=2 use elimination with adding and subtraction