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pshichka [43]
3 years ago
5

Can someone please help and explain how to use the Pythagorean Theorem to prove a triangle is a right triangle.

Mathematics
1 answer:
marin [14]3 years ago
7 0

Hi there!

For the Pythagorean Theorem, basically you just need to apply this formula: a^2 + b^2 = c^2

And then find the root of the hypotenuse.

For example,

15^2 + 8^2 = the hypotenuse^2

Which equals, 225 + 64 = 289

Square root of 289 = 17

Please mark me brainliest if this helps!

Have a wonderful day!

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one cup and half which is 1.5 or 3/2

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1. Points A and B are to be mapped onto a number line according to two equations. The solution to the equation 2/3 A= -24 is the
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<span>The solution to the equation 2/3 A= -24 is the coordinate of point A.

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A = -24 / 2/3
A = -24 * 3/2
A = -72/2
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The solution to the equation 20=-b/0.5 is the coordinate of point B

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3 years ago
The heat developed in an electric wire varies jointly as the wires resistance, the time the current flows, &amp; the square of t
never [62]

Answer:

4 ohms

Step-by-step explanation:

The question is "In two minutes a current of 5 amps develops 1,200 heat units in a wire of 8 ohms resistance. What resistance does a similar wire have, which develops 6,000 heat units with a current of 10 amps in 5 minutes?"

Current, I₁ = 5 A

Heat, Q₁ = 1200 units

Resistance, R₁ = 8 ohms

Time, t₁ = 2 min = 120 s

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Current, I₂ = 10 A

New time, t₂ = 5 min = 300 s

We need to find the new resistance.

Heat developed is given by :

Q=I^2Rt

\dfrac{Q_1}{I_1^2R_1t_1}=\dfrac{Q_2}{I_2^2R_2t_2}\\\\R_2=\dfrac{Q_2\times I_1^2R_1t_1}{Q_1I_2^2t_2}\\\\R_2=\dfrac{6000\times 5^2\times 8\times 120}{1200\times 10^2\times 300}\\\\=4\ \Omega

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2 years ago
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10c7
=10!/(7!*(10-7)!)
=120
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3 years ago
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