Achemist heats a material to 70 degrees celsius, which is recorded as the base temperature. the temperature of the material increases further to 74 degrees celsius, after which the chemist cools the temperature to 68 degrees celsius. which numbers can be used to represent the increase and decrease of the temperature of the material from the base temperature?

hello! your answer would be b: +4 degrees celsius and -2 degrees celsius because the starting temperature was 70 degrees, then heated up four degrees, and then cooled back down 6 degrees.

also, i love your profile pic!

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.