Quick! will mark

do the polygons create congruent figures?
1. d(-6,-2), e(-8,6), f(6,-2) and x(-3,-1), y(-4,3), z(3,-1)

2. g(-5,-3), h(-7,4), j(-3,-2) and k(-3,-6), l(-5,1), m(-1,-5)

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