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Harlamova29_29 [7]
3 years ago
11

The perimeter of a rectangular field is 312 m.

Mathematics
1 answer:
ahrayia [7]3 years ago
7 0

Answer:

length = 194 (97+97)

Step-by-step explanation:

p= 312 width= 59

= 59×2-312

= 118 - 312

= 194

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Answer:

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Step-by-step explanation:

<u>Discriminant</u>

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\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}

As we need to determine the value of k that will give <u>one solution</u>, set the <u>discriminant to zero</u>.

<u>Given equation</u>:

y=kx^2-4x+4

Therefore:

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Substitute these values into the discriminant and solve for k:

\begin{aligned}b^2-4ac & = 0\\\implies (-4)^2-4(k)(4) & = 0\\16-16k & = 0\\16k & = 16\\\implies k & = 1\end{aligned}

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