3 years ago

Which of the following will NOT protect against brief exposure to dangerous gases or fumes?

Advanced Placement (AP)

1 answer:

Svetlanka [38]3 years ago

4 0

Answer: supplied air mask

Explanation: because air can go in the mask and the gases and fumes can hurt you.

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I believe that it is C

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Who did Darcy sit next to when he was invited to the Bennets’ for dinner?

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Mrs.Bennet placed him next to her, and they were both uncomfortable.

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The equations of the tangent to the curve y=xsinx at the point (pi/2,pi/2) is

never [62]

The first thing you have to realize is that tangent is the slope of a curve on a given point. You can solve for the slope by finding the derivative of the given function. So:

$\frac{d}{dx} xsin(x)$

Next use product rule (I recommend watching videos if you're confused):

$= [sin(x)] + [x*cos(x)]$

Next substitute you x-value (π/2) into your derivative:

$= [sin( \frac{ \pi}{2} )] +[ \frac{\pi}{2}*cos( \frac{\pi}{2})]$
$= 1 + \frac{\pi}{2} *0$
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So our slope at π/2 is 1. Next we use our slope-form and substitute our given value and solve for y-intercept (algebra-stuff)

$( \frac{\pi}{2}) = 1( \frac{\pi}{2}) + b$
$b = 0$

So we get our equation:

$y = x$

So our answer is E

Feel free to ask any questions.
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3 years ago

Which of the following is not One of the characteristics of money ?

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D is the answer, unlimited supply is NOT a characteristic of money

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Explain illusory<br> correlations and regression<br> toward the mean.

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Answer: Refers to the perception of a relationship between two variables when only a minor or no relationship actually exists. May be fed by regression toward the mean

Explanation: found on google

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