Answer:
4.
Step-by-step explanation:
Hope this helps!
Answer:
Step-by-step explanation:
a) The half-life equation is given by:
b) Using the decay equation we have:
we need to find t when
Therefore, it will take 4820 years to decay to half the original amount.
I hope it helps you!
The equation of the line is y = 1/2x - 3/2.
In order to find this, we first need to find the slope of the equation. The equation for slope is written below.
m (slope) = (y2 - y1)/(x2 - x1)
Given this equation (x1, y1) and (x2, y2) are your points. Knowing this, we can plug in and find the slope.
m = (-2 - -3)/(-5 - -3)
m = (-2 + 3)/(-5 + 3)
m = -1/-2
m = 1/2
Now we can use the slope and either point in slope intercept form to find the answer.
y = mx + b
-3 = -3(1/2) + b
-3 = -3/2 + b
-3/2 = b
This gives us the final equation of y = 1/2x - 3/2
Answer:
2/7
Step-by-step explanation:
The total of all probabilities of possible outcomes must be 1, so we require ...
5x +2x +3x +4x = 1
14x = 1 . . . . . . . . collect terms
x = 1/14 . . . . . . . divide by 14
Then the probability of selecting a yellow marble is ...
4x = 4(1/14) = 2/7
Answer:
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