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3 years ago

I need help please and thank you

Mathematics

1 answer:

vivado [14]3 years ago

8 0

Step-by-step explanation:

diameter i.e. d = 12ft

radius i.e r= 6ft

Area of the circle is given by,

$\pi {r}^{2} = 3.14 \times {(6)}^{2}$

$= 3.14 \times 36 = 113.04 \: \: {ft}^{2}$

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Artemon [7]

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2 years ago

Solve the simultaneous equations<br>8x – 3y = 30<br>3x + y = 7

hodyreva [135]

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2 years ago

Jane multiplies her number by three and subtracts 2.

katrin [286]

Answer:

Let the number they chose be 'x'.

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Given that,

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$or, (3x-2)(2x+3) = 110\\or, 6x^{2} +9x-4x-6 = 110\\or, 6x^{2} +5x - 6 = 110\\or, 6x^{2} +5x - 6-110 = 0\\\\or, 6x^{2} +5x - 116 = 0\\or, 6x^{2} +29x - 24x - 116 = 0\\or, x (6x +29) -4(6x+29) = 0\\or, (x-4)(6x+29) = 0\\i.e. x=4 or x=\frac{-29}{6} \\So,~ the ~number ~they~ chose~was ~either ~4 ~or ~\frac{-29}{6}$

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