Which combinations of transformations will always produce congruent figures? Check all that apply. O a dilation, followed by a rotation
O a reflection, followed by a dilation
O a rotation, followed by a translation
a translation, then a rotation, followed by a stretch
O a translation, followed by two reflections
ers/FrameChain/Activity:

1. are the triangles similar and if so why? what is the value of x? show your work.

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 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