Es bermassa 500 gram dipanaskan dari A hingga F. Kalor jenis air 4200 J/kg°C, kalor jenis Es 2100 J/kg0 C. Tentukan suhu zat tersebut saat berada di titik D jika kalor yang dibutuhkan dari proses C ke D lima kali lebih besar dari proses A ke B ?

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.