Complete the two-column proof.

given:
rt = ru
ts = us

prove:
△rst ≅ △rsu

statement reason
1. rt = ru; ts = us 1. given
2. rs = rs ?
3. △amd ≅ △bmc 3. sss
which of the following options best completes reason #2 in the triangle congruency proof?

vertical angles are equal
symmetric property of equality
reflexive property of equality
distributive property of equality

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

Select the two pairs of figures that are similar.

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.