Discover Questions

Compared to the Sun, a white dwarf star is
A.larger and hotter
B.smaller and hotter
C.larger and cooler
D.smaller and cooler? How to determine znco3 concertration in hcl solution? What is the length of BD? 2x-y=5 -4x+2y=-10
can someone explain why the answers are infinite? the final answer i got was 0/-8x but shouldn't x=0, not infinite? Math need help solving it please help.?