3 years ago

Determine which expression has the greater value: 40-16 +10 or -20 + 18 + 30?

Mathematics

1 answer:

Paul [167]3 years ago

8 0

Answer:

40-16+10

Step-by-step explanation:

40-16+10= 34

-20+18+18= 28

the greater answer is 40-16+10

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Morgarella [4.7K]

Answer:

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Step-by-step explanation:

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220, 440

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Answer:

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Step-by-step explanation:

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3 years ago

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You are right. In circle equation we have =r² so the correct answer will be C od D. But we have to calculate the center of a circle.

$x^2+y^2-8x-6y+24=0\quad|-24\\\\(x^2-8x)+(y^2-6y)=-24$

Complete the square:

$x^2-8x+a^2\implies a=\dfrac{8x}{2x}=4\implies x^2-8x+4^2\\\\\\y^2-6y+b^2\implies b=\dfrac{6y}{2y}=3\implies y^2-6y+3^2$

And we have:

$(x^2-8x)+(y^2-6y)=-24\\\\(x^2-8x+4^2)-4^2+(y^2-6y+3^2)-3^2=-24\\\\
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Answer:

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Step-by-step explanation:

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3 years ago

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