3 years ago

Which of the following shapes is a convex polygon? OA) OB) OC) OD)

Mathematics

1 answer:

Rudik [331]3 years ago

6 0

Answer:

B is a convex polygon cause it points out

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egoroff_w [7]

Answer:

V= π×r×r×h

DATA

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Step-by-step explanation:

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lora16 [44]

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Step-by-step explanation:

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Mashutka [201]

9514 1404 393

Answer:

a) (-5±√10)/3 ≈ {-2.721, -0.613}

b) (6±√21)/5 ≈ {0.283, 2.117}

Step-by-step explanation:

a) The relevant coefficients are ...

a = 3, b = 10, c = 5

$x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x=\dfrac{-10\pm\sqrt{10^2-4\cdot3\cdot5}}{2\cdot3}=\dfrac{-10\pm\sqrt{40}}{6}\\\\\boxed{x=\dfrac{-5\pm\sqrt{10}}{3}\approx\{-2.721, -0.613\}}$

b) The relevant coefficients are ...

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