3 years ago

Are 2.7, 3.6, and 4.5 a pythagorean triple

1 answer:

7 0

They are because 2.7 squared + 3.6 squared = 4.5 squared (=20.25)

Pythagoras Theorem is that a squared + b squared = c squared

So the 2 smallest numbers squared will equal the larger one squared if it is a pythagoreom triple

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The third term in an arithmetic sequence is 14 and the fifth term is 20. If the first term is a1, which is an equation for the n

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The equation for nth term is 3n + 5.

Step-by-step explanation:

Let a1 be a,

a3 = a + (n - 1)d

or, 14 = a + (3 - 1)d

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a5 = a + (n - 1)d

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a + 4d - ( a + 2d) = 20 - 14

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3 years ago

Write an equation parallel to 5x-4y=4 that passes through the point (-8,2)

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Converting to slope intercept form:-

5x - 4y = 4

-4y = -5x + 4

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y = 5/4x + 10 + 2

y = 5/4 x + 12 is the answer is slope intercept form

In standard form :-

4y = 5x + 48

5x - 4y = -48 is the answer is standard form

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