Hurry fast will give brainliest ! what is the solution to the system? y = x + 5 -2x + 12 = y (7, 12) ( 22/3. 7/3 ) (7/3, 22/3) no solution what is the solution to the system? 6x + 3y = 15 -6x - 2y = 13 (2, 1.5 ) ( 23/10, 2/5 ) (0,5) (1.5,2)

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