Answer:
19) x=-3, 20) a=1, 21) b=3, 22) x=8
Step-by-step explanation:
hope that helps, those are the answeres to each question. :)))
Answer:
A = 39 m²
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Identify Variables</u>
Shorter Diagonal d2 = 3m + 3m = 6m
Longer Diagonal d1 = 9m + 4m = 13m
<u>Step 2: Find Area</u>
- Substitute into formula: A = 1/2(13m)(6m)
- Multiplication: A = 1/2(78m²)
- Multiplication: A = 39 m²
4x=5x-12
subtract 5x from each side
-x=-12
to get a positive x multiply each side by a -1
x=12
Hope I helped :)
