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If a number has a decimal that is .5+, you round up. If it is .4-, you round down. So 817.502 would be 818.
Answer:
x=9
Step-by-step explanation:
81 is the product of -9 & -9. -9-9=-18. Therefore, (x-9)^2=0, and you get that x=9.
The next step is to draw an arc with center E.