A pre-image has coordinates N(2, 3), U(5, -1) and M(4,1). It is dilated using a scale factor of 2 centered at the origin. What
2 answers:
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Answer:
This is rational because it has two integers
Step-by-step explanation:
IRRATIONAL NUMBER <em>cannot</em><em> </em><em>be</em><em> </em><em>expressed</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>form</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>ratio</em><em> </em><em>or</em><em> </em><em>two</em><em> </em><em>integers</em><em> </em>
<em>Example</em>
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This is an irrational number
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Answer:
A = 8π cm²
Step-by-step explanation:
The area (A) of a circle is calculated as
A = πr² ( r is the radius )
Here diameter = 8 , then r = 8 ÷ 2 = 4
The area of half a circle is then
A = π × 4² =
× π × 16 = 8π cm²