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Gala2k [10]
2 years ago
5

Help me i need it i will give brainlest

Mathematics
1 answer:
KatRina [158]2 years ago
4 0

Answer:

a = 5.3

Step-by-step explanation:

Plug the length of the other two sides into the Pythagorean Theorem and solve.

a² + b² = c²

a² + 6² = 8²

a² + 36 = 64

a² = 28

a = √28

a = 5.291502622 ⇒ 5.3 (to the nearest tenth)

The length of "a" is 5.3.

Hope that helps.

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2 years ago
What are the coordinates of the hole in the graph of the function f(x) ?
Vinvika [58]
ANSWER

(3, \infty )

EXPLANATION

The given function is

f(x) = \frac{ {x}^{2} - 9}{x - 3}

When we plug in x=3 into this function, we obtain,

f(3) = \frac{0}{0}

This means that the function is discontinuous at x=3.

We need to simplify the function to obtain,

f(x) = \frac{(x - 3)(x + 3)}{(x - 3)}

This implies that,

f(x) = x + 3

The graph this function is a straight line that is continuous everywhere.

To graph

f(x) = \frac{ {x}^{2} - 9}{x - 3}
we draw the graph of

f(x) = x + 3
and leave a hole at x=3.

See diagram in attachment.

Hence the coordinates of hole is

(3, \infty )

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3 years ago
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