Answer:
The substance half-life is of 4.98 days.
Step-by-step explanation:
Equation for an amount of a decaying substance:
The equation for the amount of a substance that decay exponentially has the following format:
In which k is the decay rate, as a decimal.
k-value of 0.1392.
This means that:
Find the substance's half life, in days.
This is t for which 
. So
The substance half-life is of 4.98 days.
Answer:
(1,11)
Step-by-step explanation:
Given expression
y=8x+3
Substitute any values of x
Here, we are substituting x=1
⇒y=8x+3
y= 8+3
y=11
⇒ordered pair=(1,11)
All four angles are exterior angles of the quadrilateral.
We know that the sum of exterior angles of any polygon is 360 ° .
So we can add together the four angles and solve for x:
(x+16)+(3x-1)+6x+5x = 360
15x+15=360
15x=345
x=345/15=23 °
Answer:
1 every 2.5 feet
Step-by-step explanation:
20 divided by 8 20 being the plants 8 being the length gives u 2.5
