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3 years ago

Please help me solve this. :)

Mathematics

1 answer:

Aloiza [94]3 years ago

6 0

Answer:

Step-by-step explanation:

Given problem:

x² - y²

x+ y = 10

x - y = 4

Solution:

Using the concept of differences of two squares;

x² - y² = (x + y)(x - y)

So;

x² - y² = 10 x 4 = 40

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cupoosta [38]

Answer:

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Let

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3 years ago

Find the slope of the line that passes through the points (0,-11) and (8,-8).

Korolek [52]

To find the slope of a line, we can use the following formula:

$\displaystyle \large{m = \frac{y_2 - y_1}{x_2 - x_1} }$

m-term stands for slope or gradient. The formula is useful whenever you want to find a slope of two points.

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$\displaystyle \large{(x_1,y_1) = (0, - 11)} \\ \displaystyle \large{(x_2,y_2) = (8, - 8)}$

Substitute the points in formula:

$\displaystyle \large{m = \frac{ - 8 -( - 11)}{ 8 - 0} }$

Negative multiply negative always come out as positive.

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Since m stands for slope, we can say that:

$\displaystyle \large \boxed{ \tt{slope = \frac{3}{8} }}$

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3 years ago

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??? Need help please

elena55 [62]

Slope is -3
Explanation
Take points
(4,3) and (6,-3)
-3-(3)
———= -6/2 which equals -3
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2 years ago

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2/14 in simplest form is 7.

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Please help me solve this. :)​

Please help me solve this. :)