[2 -6] - [-2 4] please help
2 answers:
Answer:
Step-by-step explanation:
This question is about order of operations. It stands for parenthesis, exponent, multiply, divide, add, and subtract from left to right.
First thing you do is parenthesis.
Then, add and subtract numbers from left to right to find the answer.
20, which is our answer.
Hope this helps!
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So the answer is 2.74 seconds.
Note that taking the square root of 7.5, mathematically, gives you both 2.74 and -2.74. But because we know that time did not go backwards, only the positive value for t was considered.