Answer:
4.50
Step-by-step explanation:
First add 50 and 40 to get 90. Then multiply that by 0.05 to get 4.5.
Answer:
The correct option is C: the isotope of iodine contains 81 neutrons.
Step-by-step explanation:
The mass (A) of the iodine isotope is given by:

Where:
Z: is the number of protons
N: is the number of neutrons
For iodine Z= 53, so if A = 134 the number of neutrons is:

Therefore, the correct option is C. The isotope of iodine contains 81 neutrons.
I hope it helps you!
Answer:
No, Ssa triangle always not have two solutions
Step-by-step explanation:
the solution can be one, two or there will be no dolution. So this statement is false.
i believe the answer is B
but i could always be wrong :(