3 years ago

How can you prove a triangle is a night triangler

Mathematics

2 answers:

vichka [17]3 years ago

6 0

Answer:

Use the slope formula to see if any sides are perpendicular

Step-by-step explanation:

A right triangle has a right angle. Two sides form a right angle if they lie on perpendicular lines. If you find the slopes of all sides, then you can use the slopes to see if any two sides are perpendicular.

Answer: Use the slope formula to see if any sides are perpendicular

Eduardwww [97]3 years ago

3 0

Answer:

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Step-by-step explanation:

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4 years ago

114.3 is what percent of 288? Round to the nearest hundredth. Please don’t get this wrong.

Alinara [238K]

Answer:

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Step-by-step explanation:

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3 years ago

Evaluate the following when $a = 3$, $b = \frac14$, and $c = 5$: \[ \frac{b^{-1}}{ca^{-1} - ac^{-1}}. \] Thank you so much!

pickupchik [31]

$\dfrac{b^{-1}}{ca^{-1}-ac^{-1}}=\dfrac{\frac1b}{\frac ca-\frac ac}$

Multiply the numerator and denominator by $ac$ :

$\dfrac{\frac1b}{\frac ca-\frac ac}\cdot\dfrac{ac}{ac}=\dfrac{\frac{ac}b}{c-a}$

Since $b=\frac14$ , we have $b^{-1}=\frac1b=4$ . So substituting the values of a, b, and c gives us

$\dfrac{\frac{ac}b}{c-a}=\dfrac{3\cdot5\cdot4}{5-3}=\dfrac{60}2=\boxed{30}$

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3 years ago

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(Please. I wouldn't be asking if i didn't need help. I have been stuck for 6 hours straight.)

Andre45 [30]

Answer:

Q1: 1:725

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3 years ago

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alex41 [277]

$\frac{9}{27} = \frac{1}{3}$

This is the simplest form of the fraction.

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3 years ago

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