The first and last term factor into (2x+7) since this is a perfect square trinomial the answer must be 28
Answer: i think its 80m.
Step-by-step explanation:
Answer:
Number 45 increased by 10% (10 percent) of its value (percentage increase) and calculated absolute change (actual difference). Answer: number percentage increased = 49.5, absolute change (actual difference) = 4.5 Introduction. Percent, p% p% = p / 100 = p ÷ 100.
Step-by-step explanation:
Hope this helps :)
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Ashley's method is the exact definition of the square root, so it is correct.
Brandon's method is incorrect: dividing by 2 and taking the square root and completely different operations, and it would only work in this special case.
For example, the square root of 9 is 3, but 9/2=4.5.
Similarly, the square root of 16 is 4, but 16/2=8, and so on.
You can try any other couple, it will never work.
