Plz help find the volume of the cylinder plz
1 answer:
Answer:
V = 12π in³
General Formulas and Concepts:
<u>Symbols</u>
- π (pi) ≈ 3.14
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
- Left to Right<u> </u>
<u>Geometry</u>
Volume of a Cylinder Formula:
- r is radius
- h is height
Step-by-step explanation:
<u>Step 1: Define</u>
Radius <em>r</em> = 2 in
Height <em>h</em> = 3 in
<u>Step 2: Find Volume</u>
- Substitute in variables [Volume of a Cylinder Formula]: V = π(2 in)²(3 in)
- [Volume] Evaluate exponents: V = π(4 in²)(3 in)
- [Volume] Multiply: V = π(12 in³)
- [Volume] Multiply: V = 12π in³
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False, it's the other way around: you divide the numerator by the denominator.
For example, to evaluate you divide 8 by 15:
<h3>f(x) = -3·2^(x-1) -1</h3>
- reflection across the x-axis (multiplication by -1)
- vertical expansion by a factor of 3 (multiplication by 3)
- shift to the right 1 unit (replace x with x-1)
- shift down 1 unit (add -1 to the function value)
_____
<h3>f(x) = -1/4·2^(x+1) -1</h3>You may notice this is the same as the previous question, but with the vertical expansion factor 1/4 instead of 3, and the horizontal shift left instead of right.
- reflection across the x-axis (multiplication by -1)
- vertical compression by a factor of 4 (multiplication by 1/4)
- shift to the left 1 unit (replace x with x+1)
- shift down 1 unit (add -1 to the function value)
keeping in mind that parallel lines have exactly the same slope, let's check for the slope of the equation above
so we're really looking for the equation of a line with a slope of 2 and that it passes through (4 , 1)
kinda twins.