Answer:
the answer is x=1,−13
Step-by-step explanation:
.
Answer:
I believe nonrecurring.
Step-by-step explanation:
If you havent already answered it I hope this helps :)
The piece of unknown metal is in thermal equilibrium with water such that Q of metal is equal to Q of the water. We write this equality as follows:
-Qm = Qw
Mass of metal (Cm)(ΔT) = Mass of water (Cw) (ΔT)
where C is the specific heat capacities of the materials.
We calculate as follows:
-(Mass of metal (Cm)(ΔT)) = Mass of water (Cw) (ΔT)
-68.6 (Cm)(52.1 - 100) = 42 (4.184) (52.1 - 20)
Cm = 1.717 -----> OPTION C
One triangle has 180°
33°+57°=90°
180°-90°=90
So Z is 90°
so it's a right triangle.
