3 years ago

Based on the triangle below,

Mathematics

1 answer:

timama [110]3 years ago

6 0

The correct answer would be c or the 3 one

JK AND JL

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3 years ago

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suter [353]

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3 years ago

Over what interval is the function differentiable? Y=3/2(x-1)

jolli1 [7]

Answer-

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$[-\infty,1)\ \bigcup\ (1,\infty]$

Solution-

The given expression is,

$y=\dfrac{3}{2(x-1)}$

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Therefore, apart from x=1, this function is differentiable everywhere. The interval will be

$[-\infty,1)\ \bigcup\ (1,\infty]$

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3 years ago

What is the intermediate step in the form (x+a)^2=b as a result of completing the square for the following equation? Please help

barxatty [35]

Answer:

${( \bold {\purple{ \boxed{ x + 7}}})}^{2} = \: \bold {\purple{ \boxed{ 9}}}$

Step-by-step explanation:

$- 2 {x}^{2} - 28x = 80 \\ \\ - 2( {x}^{2} + 14x) = 80 \\ \\ {x}^{2} + 14x = - 40 \\ \\ {x}^{2} + 2.x. \bold{ \red{7 }}+ 49 = - 40 + 49 \\ (add \: square \: of \: 7 \: both \: sides)\\ \\ {x}^{2} + 14x + {7}^{2} = 9 \\ \\ {( \bold {\purple{ \boxed{ x + 7}}})}^{2} = \: \bold {\purple{ \boxed{ 9}}}$

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3 years ago