If I'm not mistaken.. the half-life should be 40,750 years.. so
y = 40,750
I got this by multiplying 25,000 by 1.63 and then if you divide by 2.. you get
20,375.. so one of those should be correct
<span>18.374 </span><span>r</span><span>ounded to the nearest tenth is </span><span>18.400.</span>
<span>Because 7 is after 5 so we will round to the next tenth......18.400
Hope I helped:P</span>
Answer:
x² + y² = 6.25
Step-by-step explanation:
The standard equation of a circle is ( x – h)² + ( y - k)² = r² where the center is (h, k) and r is the radius.
From your given information that the center is (0, 0) then both h and k are 0. Then r is 2.5, so
( x – 0)² + ( y - 0)² = (2.5)²
x² + y² = (2.5)²
x² + y² = 6.25
Answer:
Step-by-step explanation:
Swap the fraction,
or around 7.142...
(I'm going to use brackets as my absolute value bars lol)
[5 x -3]
[-15]
=15
