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2 years ago

Which pair of triangles cannot be proved

Mathematics

1 answer:

schepotkina [342]2 years ago

4 0

I think it is b not 100% tho

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Which expression is equivalent to 2x+2x+2y+2y

liq [111]

4x plus 4y seems to be equal to that situation right there

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2 years ago

Which method would you choose to solve the following system?

gladu [14]

Answer: combining like terms

Step-by-step explanation:

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3 years ago

Let L be a tangent line to the hyperbola x y = 2 at x = 9 . Find the area of the triangle bounded by L and the coordinate axes.

mafiozo [28]

Answer:

$A = 4$

Step-by-step explanation:

The equation of the slope of the tangent line L is obtained by deriving the equation of the hyperbola:

$y = \frac{2}{x}$

$y'=-2\cdot x^{-2}$

The numerical value of the slope is:

$y' = -2 \cdot (9)^{-2}\\y' = -\frac{2}{81}$

The component of the y-axis is:

$y = \frac{2}{9}$

Now, the tangent line has the following mathematical model:

$y = m \cdot x + b$

The value of the intercept is found by isolating it within the equation and replacing all known variables:

$b = y - m \cdot x$

$b = \frac{2}{9}-(-\frac{2}{81} )\cdot (9)\\b = \frac{4}{9}$

Thus, the tangent line is:

$y = -\frac{2}{81}\cdot x + \frac{4}{9}$

The vertical distance between a point of the tangent line and the origin is given by the intercept.

$d_{y} = \frac{4}{9}$

In order to find horizontal distance between a point of the tangent line and the origin, let equalize y to zero and clear x:

$-\frac{2}{81}\cdot x + \frac{4}{9}=0$

$-\frac{2}{9}\cdot x + 4 = 0$

$x = 18$

$d_{x} = 18$

The area of the triangle is computed by this formula:

$A = \frac{1}{2}\cdot d_{x}\cdot d_{y}$

$A = \frac{1}{2}\cdot (18)\cdot (\frac{4}{9} )$

$A = 4$

4 0

3 years ago

Someone plz help plz

Aleks04 [339]

Answer:

Step-by-step explanation:

length x width x height= volume

4x8x2= 64

7 0

2 years ago

Read 2 more answers

What is 0.9 written as a percent

ryzh [129]

0.9 = 90%.

<span>0.9 in percent = 0.9 x 100% = 90%</span>

3 0

3 years ago

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