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2 years ago

Please help! 20 PTS! v the picture down below l

Mathematics

2 answers:

VARVARA [1.3K]2 years ago

8 0

Answer:

Step-by-step explanation:

telo118 [61]2 years ago

4 0

Step-by-step explanation:

the answer is in the pic

hope it helps

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Instructions: Find the equation of the line through point (2, -1) and

Kazeer [188]

Answer:

$y = -\frac{2}{5}x -\frac{1}{5}$

Step-by-step explanation:

Given

Passes through: $(2,-1)$

Parallel to: $2x + 5y = 15$

Required

First, calculate the slope of the parallel line

$2x + 5y = 15$

Make y the subject

$5y = 15 - 2x$

Divide through by 5

$y = 3 - \frac{2}{5}x$

$y =- \frac{2}{5}x+3$

An equation in slope intercept has the form:

$y = mx + b$

Where:

m = slope

$y = mx + b$

So:

$m = -\frac{2}{5}$

The required is parallel to $2x + 5y = 15$ .

This mean, the same slope

The equation is the calculated using:

$y - y_1 = m(x - x_2)$

This gives:

$y - (-1) = -\frac{2}{5}(x - 2)$

$y +1 = -\frac{2}{5}x +\frac{2}{5}*2$

$y +1 = -\frac{2}{5}x +\frac{4}{5}$

$y = -\frac{2}{5}x +\frac{4}{5}-1$

Take LCM

$y = -\frac{2}{5}x +\frac{4-5}{5}$

$y = -\frac{2}{5}x -\frac{1}{5}$

i.e.

$y = -2/3x -1/5$

3 0

3 years ago

Round to the nearest thousandth.<br> 1.0835

Ne4ueva [31]

Answer:

It would be 1.084

5 0

3 years ago

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En una palanca de 2do genero, pretendemos cargar un bulto de harina de 45kg colocado a 90cm del fulcro, si la palanca tiene un b

kakasveta [241]

Answer:

es fácil hacer un pastel

Step-by-step explanation:

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3 years ago

What's the concavity of f(x)=x^2+4x

Anna71 [15]

$\bf f(x)=x^2+4x\qquad \cfrac{df}{dx}=2x+4\qquad \boxed{f''(x)=2}\impliedby 
\begin{array}{llll}
\textit{just a positive}\\
constant
\end{array}$

there are no inflection points, because it never changes concavity, is just a constant and thus for any region over the x-axis, will always be a positive value, and thus is always "concave up".

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3 years ago

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Small and simple
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