4 years ago

Perpendicular lines. A, B, C or D.

Mathematics

1 answer:

Yuri [45]4 years ago

7 0

Answer:

Step-by-step explanation:

The slopes of perpendicular must multiply to -1, or in other words, be negative reciprocals.

Ex: 2/3 and -3/2 are perpendicular

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Which shows all the values of x that make the rational expression undefined? x = 6 x = 7 x = –6 or x = 6 x = –7 or x = 7

n200080 [17]

<h2>Explanation:</h2>

The rational expression is given by:

$E=\frac{2x^2-72}{5x^2-245} \\ \\ Factor \ out: \\ \\ E=\frac{2(x^2-36)}{5(x^2-49)} \\ \\ E=\frac{2(x-6)(x+36)}{5(x-7)(x+7)} : \ \ \ \ a^2-b^2=(a-b)(a+b)$

The denominator can't be zero, therefore:

$(x-7)(x+7)\neq 0 \\ \\ \\ Thus: \\ \\ \boxed{x\neq 7 \ and x \neq -7}$

Finally,<em> the values of x that make the rational expression undefined are </em>

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3 years ago

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Nadusha1986 [10]

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450 + 300 + 500 = 1250 mg total.

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4 years ago

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Is an anole a primary consumer,secondary or third level consumer

Alexus [3.1K]

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3 years ago

Given the function f(x) = 2^x, find the value of f^−1(32).

klio [65]

$f(x)= 2^{x}$

We are to find the value of $f^{-1}(32)$

First we need to find the inverse of f(x) . The inverse of $2^{x}$ is $\frac{ln(x)}{ln(2)}$ .

Steps to find inverse of f(x) are shown below in the image.

So $f^{-1}(32)$ = $\frac{ln(32)}{ln(2)}=5$

Therefore, the correct answer is option C

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3 years ago