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Nookie1986 [14]
3 years ago
5

Factor x^2 + 7x -18 Please help

Mathematics
1 answer:
Anton [14]3 years ago
4 0
x^2 + 7x -18=\\
x^2-2x+9x-18=\\
x(x-2)+9(x-2)=\\
(x+9)(x-2)
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Using the formula C = 2πr, find the circumference of a circle with diameter of 28 inches. Round your answer to the nearest inch.
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88 inches

Step-by-step explanation:

Diameter is 2 times the radius (r) so divided 28 by 2 to get 14 as the radius.

Plug this in:

2π14

28π

87.964

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S is an integer and
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0 is an integer of the number

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The number of fish and a leg decreased by 25% between last year and this year. Last year there were 60 fish in the lake. What is
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Answer:

Step-by-step explanation:At the start of the question the population of the lake was 60 fish 1 year ago.

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Can the ratio of a parents age to his or her child's age ever be exactly 3:2? explain.
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3 years ago
What are the zeros of the quadratic function f(x) = 6x2 – 24x + 1?<br><br> fast please
xxTIMURxx [149]

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step by step explanation:

\boxed{\boxed{\dfrac{12+\sqrt{138}}{6},\ \dfrac{12-\sqrt{138}}{6}}}

Solution-

The quadratic function is,

6x^2-24x + 1

a = 6, b = -24, c = 1

x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

=\dfrac{-(-24)\pm \sqrt{-24^2-4\cdot 6\cdot 1}}{2\cdot 6}

=\dfrac{24\pm \sqrt{576-24}}{12}

=\dfrac{24\pm \sqrt{552}}{12}

=\dfrac{24\pm 2\sqrt{138}}{12}

=\dfrac{12\pm \sqrt{138}}{6}

=\dfrac{12+\sqrt{138}}{6},\ \dfrac{12-\sqrt{138}}{6}

4 0
3 years ago
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