The amount of substance left of a radioactive element of half life,

after a time, t, is given by:

Given that <span>potassium-40 has a half life of approximately 1.25 billion
years.
The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:

Therefore, </span><span>the maximum age of a fossil that we could date using 40k is
12.5 billion years.</span>
Answer: 1.834 ft
Step-by-step explanation:
Given
Walter's first Jump is 5 ft, 9 in.
His second Jump is 3 ft, 11 in.
We know,

Converting inches to feet
First Jump in feet

Second jump

The difference in the measurement of two Jumps is

So, Walter first Jump is 1.834 ft higher than the second Jump
Answer:
No, the blinds will not fit inside a 45-inch space.
Step-by-step explanation:
No, the blinds will not fit inside a 45-inch space, because the blinds are too large.
To check;
140 cm = 56 inches
140 / 2.5 = 56
&
45 inches = 112.5 cm
45 x 2.5 = 112.5
Hope this helps!
Answer:
they are 13 points away from eachother
Step-by-step explanation:
count up or down then left or right