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IgorC [24]
2 years ago
11

What is the answer of: (10+2b)^2

Mathematics
1 answer:
scZoUnD [109]2 years ago
5 0

Answer:

10^2+2×2b×10+2b^2 = 100+40b+2b^2

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For point (i):

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5 0
3 years ago
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BlackZzzverrR [31]

Answer:

x=81 or 1/3

Step-by-step explanation:

x^\log_3(x)} =81x^3\\\log_3(x^{\log_3(x)})=\log_3(81x^3)\\\(\log_3x)(\log_3x)=\log_381+\log_3x^3\\(\log_3x)^2=3\log_3x^+4\\\\Let u=\log_3x\\\\u^2-3u-4=0\\(u-4)(u+1)=0\\u=4 \\4=\log_3x\\x=3^4=81\\\\u=-1\\-1=\log_3x\\x=3^{-1}=1/3

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3 years ago
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35.99 ROUND IT OFF TO 36.00 SO THAT MEANS HE PAID 163.99
199.99X 18/100
3599.85/100
36
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