The answer is 60
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Answer:
v = -1
Step-by-step explanation:
-4 (-3 + 7v) = -7v + 33
12 -28v = -7v + 33
-12 -12
-28v = -7v + 21
-28v + 7v = 21
-21v = 21
-21÷-21 = 21÷-21
v = -1
Answer:
X=-14
Step-by-step explanation: I did it before
Answer: 25 cars
Step-by-step explanation:
This is a box plot and it is a useful graph for showing the minimum, maximum, median and quartile values of a data distribution.
The box you see in the middle is the Interquartile range. In other words, the first line on the box is Q1 and the line at the end of the box is Q3.
The line in the middle of the box is the median or Q2.
The distance between Q1 and the median is 25%.
The number of cars between 40 and 48 miles per hour is therefore 25% of the total.
= 100 * 25%
= 25 cars
Answer: 54678 years
Step-by-step explanation:
This can be solved by the following equation:
(1)
Where:
is the quantity of atoms of carbon-14 left after time ![t](https://tex.z-dn.net/?f=t)
is the initial quantity of atoms of C-14 in the mammal hide
is the rate constant for carbon-14 radioactive decay
is the time elapsed
On the other hand,
has a relation with the half life
of the C-14, which is
:
(2)
Substituting (2) in (1):
(3)
Applying natural logarithm on both sides of the equation:
(4)
(5)
Isolating
:
(6)
(7) This is the age of the mammal hide