Which of the following best completes the proof showing that δwxz ~ δxyz? triangles wxz and xyz that share side xz with right angle xzw, wz equals 16, xz equals 12, and yz equals 9 since segment xz is perpendicular to segment wy, angles wzx and xzy are both right angles and congruent. the proportion shows the corresponding sides are proportional, so the triangles are similar by the sas similarity postulate.
a)16 over 12 equals 9 over 12
b)16 over 12 equals 12 over 9
c)12 over 12 equals 16 over 9
d)12 over 16 equals 16 over 9

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

Factor the polynomial. b^2 + 4b + 4