2 years ago

How do you use a calculator

Mathematics

1 answer:

Vladimir79 [104]2 years ago

6 0

Answer

Push in the numbers you want to find the answer to and click the equal sign.

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Sonbull [250]

$f(x)=\frac{1}{x^2-9}$

The denominator can't be equal to 0.
$x^2-9 \not= 0 \\
x^2 \not= 9 \\
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The domain is all numbers except -3 and 3.
$x \in \mathbb{R} - \{-3, 3 \}$

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3 years ago

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butalik [34]

Answer:

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Step-by-step explanation:

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A string is cut into two pieces in the ratio 2 : 7. The difference between the lengths of the two pieces is 90cm. Find the lengt

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Answer:the length of the shorter string= 36cm

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Point B, located at (-4, -7), is reflected over the y-axis. What are the coordinates of B'?

strojnjashka [21]

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