1 rectangle perimeter = 8 +8 +5 +5 = 26
2 rectangle perimeter = 8 +8 +10+10 = 36
3 rectangle perimeter = 8 +8 +15+15 = 46
3rd table is correct
Answer: FD , EFD
Step-by-step explanation:
Answer:
A. the one in the table because after two hours it is the size of the one that began at 20 cm
B. the one describes by the graph because after 10 hours it would be 0 cm and the one described by the equation would be 5 cm
C. the one described by the graph will burn out in 10 hours as shown in the graph and the one described by the equation will burn out in 12 hours
Step-by-step explanation:
i hope this helps
Answer:
(-3, 5)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
<u>Algebra I</u>
- Coordinates (x, y)
- Terms/Coefficients
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
y = x + 8
x + y = 2
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y </em>[2nd Equation]: x + x + 8 = 2
- Combine like terms: 2x + 8 = 2
- [Subtraction Property of Equality] Subtract 8 on both sides: 2x = -6
- [Division Property of Equality] Divide 2 on both sides: x = -3
<u>Step 3: Solve for </u><em><u>y</u></em>
- Substitute in <em>x</em> [1st Equation]: y = -3 + 8
- Add: y = 5
