Is each of the following a function? yes or no1:   (2,1) (4,3) (6,5) (8,7)2:   (2,1) (4,3) (6,5) (2,7)3:   (2,1) (4,1) (6,5) (8,7)

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec