dnaini13
dnaini13 dnaini13
  • 02-03-2019
  • Mathematics
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Please help me on number 21 And please explain

Please help me on number 21 And please explain class=

Respuesta :

yesi200510ozdxg9 yesi200510ozdxg9
  • 02-03-2019

Answer:

the answer is D) x=12

Step-by-step explanation:

You need to first multiply 3*12 then add 13. After that you need to find the square root of 49, your final answer is going to be 7. the second equation is 5*12 then subtract 11, after that find the square root of 49, and then it equals to 7.

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