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SIZIF [17.4K]
3 years ago
10

(3,-5) and (3,-9) slope intercept form​

Mathematics
1 answer:
user100 [1]3 years ago
7 0

Answer:

0

Step-by-step explanation:

To find the slope intercept form you need to use the formula:

\frac{y_2-y_1}{x_2-x_1} =slope

(3,-5)(3,-9)

(x1,y1)(x2,y2)

\frac{-9-(-5)}{3-3} =\frac{-9+5}{0}=\frac{-4}{0}=0

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Answer:

<h2>20 cm.</h2>

Step-by-step explanation:

We know that the permiter is defined as

P=L+S+M

Where L is the longest side, S is the smallest and M is the middle side.

If L=x then, S=x-20, where we need to find an expression for M using the law of cosines.

M^{2} =L^{2}+S^{2}-2 \times L \times S \times cos(60\°)\\M=\sqrt{x^{2}+(x-20)^{2}-x(x-20)}\\M=\sqrt{x^{2} +x^{2}-40x+400-x^{2}+20x}=\sqrt{x^{2}-20x+400}

Replacing all expression, the perimeter is

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Using a calculator, the perimeter is 20 units centimeters.

7 0
3 years ago
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Answer:

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Answer:

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Step-by-step explanation:

Want explanation? Comment

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