Answer:
<em>When two negatives are put together, it makes a positive. Something subtracted by a negative number, will then have that negative number added to it. </em>
<em>Step-by-step explanation: hope it helps! i know its late but other people can use the answer. <3</em>
Answer:
its D
Step-by-step explanation:
Answer:
19 gram
Step-by-step explanation:
Formula of mass left after ionising: 
where M is original mass and n is half lives.
Using the equation:
→ 18.75
Therefore, 18.75 g left after ionising.
∵ If rounded to nearest gram then 19 gram.
(-2,3). When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x).
Answer:
x=-5
Step-by-step explanation:
add 7 to 53 then divide -12 to itself and 60.
