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katrinajernae7008
18.12.2020 •
Mathematics
Use square roots to solve
x2 - 10x + 25 = 144
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Ответ:
x = 17
Step-by-step explanation: Factor the equation to get
(x - 5)² = 144
Take the square root of each side to get
x - 5 = 12 Add 5 to both sides.
x = 17
Check:
17² - 10(17) + 25 = 144
289 - 170 + 25 = 144
119 +25 = 144. true.
Ответ:
w + 2w = 60
Step-by-step explanation:
w + 2w = 60
This equation will not give you the correct value for W because W is the siez or represents the size of the smaller side, since you have 4 sides, 2 small and 2 big, the sum of this 4 sides will be the perimeter, or the total meters of fence needed, since the total meter of fence need is 60 and in the equation you just have 2 sides, the value for W will be double than the real.