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kyleryoung0602
05.05.2020 •
Mathematics
One of the solutions to x2 – 2x - 15 = 0 is x = -3. What is the other solution?
OO
x = -5
x = -1
x = 1
x = 5
Solved
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Ответ:
The answer is X=5
Ответ:
ANSWER: 400
EXPLANATION:
1) 102.2 rounded to 1 significant figure = 100
2) 4.2 rounded to 1 significant figure = 4
3) Therefore, we multiply 100 by 4, which equals 400.
EXAMPLES + EXPLANATION (IF NEEDED TO UNDERSTAND MORE)
Rounding to 2 significant figures:
102.2 = 1.0 xRounding to 3 significant figures:
102.2 = 102 4.2 = 4.20 (the 0 counts as a significant figure because there is a decimal)Rounding to 4 significant figures:
102.2 = 102.2 (already in 4 significant figures)4.2 = 4.200 (the two 0s count as significant figures because there is a decimal)