Answer:
The total change in water level over the past 2 years is
.
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Fractions
Numbers
- Least Common Multiple (LCM)
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
Year 1 water change: 
Year 2 water change: 
<u>Step 2: Find Total Water Change</u>
- [Set up] Add yearly water changes:

- [Fractions] Convert to improper:

- [Fraction] Rewrite [LCM]:

- [Order of Operations] Subtract:

- [Fraction] Convert to proper:

Answer:
C
Step-by-step explanation:
It closely resembles to a sphere.
If this is a rectangle, then the answer is the length=96 unitsI just formed two linear equations that follow the information.
1. 2l + 2w= 256
2. l=3w
Then, I solved for w by using substitution. w is 32. I then multiplied it by 3. I get the length as 96.
Answer:
<h3>The value of P(-1) is -1</h3><h3>∴ P(-1)=-1</h3>
Step-by-step explanation:
Given polynomial is 
<h3>To solve the given polynomial by using synthetic division and the remainder theorem to find P(–1):</h3>
By using the Synthetic division and remainder theorem we can solve it.
From the given P(-1) we can write it as
-1_| 2 3 -1 -3
0 -2 -1 2
_________________
2 1 -2 -1
Hence we get the remainder -1
<h3>The value of P(-1) is -1</h3><h3>∴ P(-1)=-1</h3>