Question

ONLY 40 MINUTES LEFT B4 THE SEMESTER ENDS! PLEASE PLEASE PLEASE HELP ME?!! I DONT HAVE TIME TO SOLVE. I WILL DROP OUT WITHOUT THESE!

19.the vertices of a triangle are P (2,-4), Q (-5,3), and R (-1,-2). What are the vertices of the image reflected across the y axis?
P'(2,-4), Q9-5,3), R(-1,-2)
P'(2,4) Q(-5,-3) R (-1,2)
P' (-2,-4), Q'(5,3) R'(1,-2)
P' (-2,4) Q (5,-3) R(1,2)

26. An isosceles triangle has an area of 175ft^2. if the base is 16 ft, what is the length of each leg? Round the answer to the nearest tenth.
44.5 ft
27.1 ft
23.3 ft
21.9 ft

Answer 1

P' (-2,4) Q (5,-3) R(1,2)
23.3
1st one is by reflection, so every value would be corresponding negative value on the other axis.
2nd one is by finding out the value of height, which is 21.9,(1/2base*height = area) and then using pythagoras for finding the length of leg. (21.9^2 + 8^2 = l. of leg ^2)

Answer 2

thank you so much, I am literally crying right now! ok, I have some more, I only have 25 minutes now to get these done. could you please help with the last few?! I am so close to graduating not passing will kill me!

Answer 3

I will give you hints, but i really think you should try doing it on your own. And what surprises me is you can use the internet while doing the test. Go on, however :)

Answer 4

its too late now.... yeah theres no way I have time. thank you anyways, you've helped a lot

Answer 5

All the best man. You'll do great :)