Talia is writing a coordinate proof to show that the diagonals of a square are perpendicular. she begins by assigning coordinates to the vertices of a square as shown.

which sentence describes what talia should do to show that the diagonals of the square are perpendicular?

a) show that sq=pr=a(sqr rt)2

b) show that the midpoint of line sq is the same as the midpoint of line pr

c) show that the slope of line sq is 1 and the slope of line pr is -1

d) show that line sq is and line pr intersect at (a/2, a2)

Really need on these. i have no idea what to do

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet