Answer:

Step-by-step explanation:
The half life is the amount of time it takes a substance to decay to half of its original amount.
Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.
So, the fraction that will be left after 1000 years is 
<span>Write the equation
</span>
3n - 6 = n + 8
hope it helps
Answer:
y=-2x-4
Step-by-step explanation:
y=mx+b
count the slope (-2/1)
find the y-intercept(0,-4)
write it out (-2/-1)x-4
simplify (-2x-4)
<h3>The actual height of building is 37.5 feet</h3>
<em><u>Solution:</u></em>
Given that,
The drawing of a building shown below has a scale of 1 inch to 30 feet
1 inch = 30 feet
The drawing of the building of this problem has the height of 1.25 inches and base of 0.75 inches
<em><u>Thus actual height is given as:</u></em>
height = 1.25 inches

<em><u>The actual base is given as:</u></em>
base = 0.75 inches

Thus actual base is 22.5 feet
Answer: If the numbers are arranged from the least to the greatest, then it is called ascending order. In this form, the numbers are in increasing order. The first number should be lesser than the second number. If the numbers are arranged from the greatest to the least, then it is called descending order
Step-by-step explanation: