Which grade of tire is providing better quality? explain. choose the correct answer below. a. grade y provides the better quality. while the mean of grade x is closer to the expected mean, the standard deviation of grade y is much smaller. b. grade x provides the better quality. while the mean of grade y is closer to the expected mean, the standard deviation of grade x is much smaller. c. grade y provides better quality because its mean is much smaller. d. grade x provides better quality because its mean is much smaller.

they disappear if your absent from to long. i found out that the hard way.

step-by-step explanation:

brainliest lol i just need one more brainliest.

alright so i think for this one it would to draw it out. this may be hard for me to try and draw, but i will do my best on here:

        r

  /       |     \

notice how it forms 2 triangles inside one bigger triangle.

so if we know the angle spr is the same as psr that is saying the measure of angle p is the same as angle s. this means the big triangle psr is either isosceles or equilateral. in both cases, the triangle is perfectly symmetrical when split down the middle, which is in this case rq. because we know it is perfectly symmetrical on both sides, we know that the two triangles inside the bigger one are equal.