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LuckyWell [14K]
3 years ago
14

Does anyone know this?

Mathematics
1 answer:
Marrrta [24]3 years ago
8 0

Answer:

f(-9) = 279

Step-by-step explanation:

f(x) = 4x^2 + 7x + 18

f(-9) = 4(-9)^2 +7(-9) + 18

       = 4(81) - 63 + 18

       = 324 - 63 + 18

       = 279

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Answer:

(5,3)

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3 years ago
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6 0
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If 2x – 10y = -1 and 5x + 6y = 4 are true equations, what would be the value<br> of 7x - 4y?
Zigmanuir [339]

Answer:

Step-by-step explanation:

If the equations are true, they can be solved simultaneously.

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5.26 + 9.75
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7 0
3 years ago
-y^2+x^3-4x^3-6y^2+5-2-x^3
Alex

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{\texttt{{Hello}}}

\gray{\boxed{{\textsf{trouble}}}}

-y  ^ { 2  }  +x  ^ { 3  }  -4x  ^ { 3  }  -6y  ^ { 2  }  +5-2-x  ^ { 3  } \\

\green{\boxed{{\textsf{Development}}}}

-y  ^ { 2  }  +x  ^ { 3  }  -4x  ^ { 3  }  -6y  ^ { 2  }  +5-2-x  ^ { 3  } \\

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-y^{2}-3x^{3}-6y^{2}+3-x^{3}  \\

-y^{2}-4x^{3}-6y^{2}+3  \\

-7y^{2}-4x^{3}+3  \\

\red{\boxed{{\textsf{Answer}}}}

-7y^{2}-4x^{3}+3  \\

\red{\texttt{{\textsf{XxXDxX}}}}

\orange{-}\red{-}\green{-}\blue{-}\orange{-}\orange{-}\red{-}\green{-}\blue{-}\orange{-}

6 0
2 years ago
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