(3k2 - 7k + 12) = (3k + 2)
2 answers:
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If e-the initial hight of the tree, and the function imply some brackets like
f(x)=30/(1+29e-0.5x) then
for every
the rate of growth is negative, the maximum growth per unit of time would be 30ft
If
then
so the tree couldn't be 2ft tall initially
if the brackets are something like
f(x)=30:(1+29e)-0.5x then the results may differ
Answer:
46 gallons
Explanation:
First, we need to calculate the area of the path. This area can be calculated as the difference between the area of the outer circle and the area of the inner circle. The area of a circle is equal to
Where r is the radius. For the outer circle, the diameter is 28 yd, so the radius is equal to
radius = diameter/2
radius = 28 yd/2
radius = 14 yd
Then, the area of the outer circle is
In the same way, the radius of the inner circle is
radius = diameter/2
radius = 18 yd/2
radius = 9 yd
Then, the area is
So, the area of the path is
Area path = 615.44 yd² - 254.34 yd²
Area path = 361.1 yd²
Now, we know that one gallon can cover 8 yd², so we can calculate the number of gallons as
Therefore, the number of gallons is 46 because we need to round the result to a whole number.
ANSWER
EXPLANATION
The area of the given triangle can be calculated using the formula,
Where b=54yd , c=54yd,and A=27° is the included angle.
We plug in these values to get;
The correct answer is D.