1. B
2. D
3. C= πD
a) 204π or 641 cm
A= π r²
b) π (102)²
10404π squared cm or 32669 squared cm
4. C
5. D
Answer:
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Answer:
around 1.67 inches
Step-by-step explanation:
We have to divide 1.25 inches by 0.75 inches to get the scale factor.
2a^2+4a+1 is equivalent to 4a+4/2a*a^2/a+1