Standard algorithm i think
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To the nearest thousand, it is 8,000
To the nearest hundred, it is 7,900
To the nearest ten, it is 7,930
Hope that helped :)
Answer: The answer for 1. is 216
The answer for 2. is 224
The answer for 3. is 90
The answer for 4. is 40
The answer for 5. should be 80
Step-by-step explanation:
Area = Pi x r (r + v)
v is h^2 + r^2 under radical (couldn't write it in the equation above so I wrote it here)
The answer is the 1st choice, 1944 pi
1 times 10 is 10. 10 times 10 is 100. So for those 3 models, the base is 10. All grids relate to the base 10 number system, because from left to right, the shaded part is getting bigger (increasing) by multiplying by 10. Hope this helps!
:)
