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ololo11 [35]
3 years ago
15

What is 12tenths+9tenths=_tenths=_ones_tenths

Mathematics
1 answer:
MArishka [77]3 years ago
7 0
12/10 + 9/10 = 21/10

21/10 simplified is 2 1/10
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Which is the best first step when solving the following system of equations?x+y=3 and 4x-y=7
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Given the function f(x)=x^4+8x^3+18x^2+7 determine the absolute minimum value of f on the closed interval [-4, 1].
Blababa [14]

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Step-by-step explanation:

To find the absolute minimum we must first take the derivative of the function and find where it equals zero. From there we can use the first derivative test to find where our possible minimum is. We then will test each endpoint and compare for the minimum for this function.

f(x)=x^4+8x^3+18x^2+7\\f'(x) = 4x^3+24x^2+36x\\\\4x^3+24x^2+36x = 4x(x^2+6x +8)\\\\x = 0\\x = -4\\x = -2\\\\f(-4) =  39\\f(-2) =31\\f(0) = 7\\f(1) = 34

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Answer and Step-by-step explanation:

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3 years ago
Read 2 more answers
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