<h2>
Answer:</h2>
The Maple tree.
<h2>
Step-by-step explanation:</h2>
The Sycamore is 15 and 2/3 feet tall, which is 15.667 feet.
The Oak is 14 and 3/4 feet tall, which is 14.75 feet.
The Maple is 15 and 3/4 feet tall, which is 15.75 feet.
The Birch is given as 15.72 feet.
Out of these, the tallest is the Maple, which is at 15.75 feet.
Start with
Add 2x to both sides:
Subtract 21 from both sides:
Divide both sides by 5. Since it is positive, we don't have to change the inequality sign:
So, the answer is 
So all you need to do if find the min of the function:
f(x)=0.04x^3-4x^2-176x
f'(x)=0.12x^2-8x-176
The only zero for this is x=84.105 <---first
Plug this into f(x) to get f(84.105)=-19300 <---second
Answer:
x = 13/6
Step-by-step explanation:
We are the following expression;
x - 2(2 - (3/2)*x) = 2(4 - x) + 1
x - (4 - 3*x) = 8 - 2*x + 1
x - 4 + 3*x = 8 - 2*x + 1
4*x + 2*x = 9 + 4
6*x = 13
x = 13/6
