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Lesechka [4]
3 years ago
9

WILL GIVE BRAINLIST SOON AS I CAN is the second number 3?​

Mathematics
2 answers:
EleoNora [17]3 years ago
7 0
Yes the second number is three
Finger [1]3 years ago
5 0

Answer:

x = 2\sqrt{13}

Step-by-step explanation:

Using Pythagoras' identity on each of the 3 right triangles

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Outer right triangle

x² + z² = (9 + 4)² = 13² = 169, that is

x² + z² = 169 → (1)

Left right triangle

y² + 4² = x²

y² + 16 = x² ⇒ y² = x² - 16 → (2)

Right right triangle

z² = y² + 9²

z² = y² + 81 → (3)

Substitute (3) into (1)

x² + y² + 81 = 169 ← substitute (2) into here

x² + x² - 16  + 81 = 169

2x² + 65 = 169 ( subtract 65 from both sides )

2x² = 104 ( divide both sides by 2 )

x² = 52 ( take the square root of both sides )

x = \sqrt{52}

  = \sqrt{4(13)}

  = \sqrt{4} × \sqrt{13} = 2\sqrt{13}

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notka56 [123]

Answer:

y = \frac{32}{3}

Step-by-step explanation:

Firstly, move over the negative 3/4 fraction (don't forget to swap the operation i.e subtract to add):

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Now, to add the two fractions, simply multiply the numerator and denominator by 3:

\frac{3*3}{4*3} = \frac{9}{12}

Now add this to the other fraction:

\frac{9}{12} + \frac{7}{12} = \frac{16}{12}

This can be simplified down by dividing both the numerator and denominator by 4:

\frac{4}{3}

Which now simplifies the original equation to:

\frac{y}{8}  = \frac{4}{3}

Remove the y out of the fraction:

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Now multiply both sides by 8:

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Step-by-step explanation:

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Answer:

Johnny is incorrect because the slope is actually 6.

Step-by-step explanation:

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2 years ago
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