Answer:
a= 3
Step-by-step explanation:
Answer:
1845 years
Step-by-step explanation:
Decay of Carbon-14 is usually modeled by an exponential function. It x is the number of years since the original amount was brought into existence, then the fraction remaining (y) is modeled by ...
... y = (1/2)^(x/5730)
We want to find the value of x when y = 80% = 0.80. The equation is then ...
... 0.80 = 0.50^(x/5730)
Taking logarithms, we get
... log(0.80) = (x/5730)·log(0.50)
Multiplying by the inverse of the coefficient of x, we have
... x = 5730·log(0.80)/log(0.50) ≈ 1845 . . . . years
The answer would be one chance in seven.
Answer:
ok umm this looks hard can u give mor info?
Step-by-step explanation:
The coordinates of point D is (0, 7)
<h3><u>solution:</u></h3>
The midpoint M of CD has coordinates (2, 5)
Point C has coordinates (4, 3)
To find: coordinates of point D
The midpoint of line AB conatining points 
and 
is given as:
Here in this problem,
Midpoint (C, D) = (2, 5)
Subsituting the values in formula we get,
On comparing both the sides we get,
Thus the coordinates of point D is (0, 7)
