Answer:
x = 6
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Geometry</u>
- All angles in a triangle add up to 180°
Step-by-step explanation:
<u>Step 1: Set up equation</u>
(8x + 2) + 70 + 60 = 180
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms: 8x + 132 = 180
- Isolate <em>x</em> term: 8x = 48
- Isolate <em>x</em>: x = 6
Answer:
3. 2/9,2,0
Step-by-step explanation:
(2/9,2,0,-7)
Pyramid Volume = (Area of the Base * Height) ÷ 3
Height = 3 * Volume / (Area of Base)
Height = 3 * 216 / 36
Height = 18 cm
