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Mashutka [201]
3 years ago
9

Error Analysis A contractor purchases 3 dozen pairs of padded work gloves for ​$39.96. He incorrectly calculates the unit price

as ​$13.32 per pair for the expense report. What is the correct unit​ price? What is the​ error? :)
Mathematics
2 answers:
Degger [83]3 years ago
6 0
Potatoes it’s definitely potatoes
Monica [59]3 years ago
6 0

Answer:

i was just about to say he didnt make a mistake because it all adds up im confused

Step-by-step explanation:

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Hi. I need help with these questions (see image)<br>Please show workings.<br>​
pantera1 [17]

Answer:

see explanation

Step-by-step explanation:

Using the chain rule

Given

y = f(g(x)), then

\frac{dy}{dx} = f'(g(x))  × g'(x) ← chain rule

and the standard derivatives

\frac{d}{dx} (log_{a} x ) = \frac{1}{xlna} , \frac{d}{dx}(lnx) = \frac{1}{x}

(a)

Given

y = log_{a}\sqrt{(1+x)}

\frac{dy}{dx} = \frac{1}{lna\sqrt{(1+x)} } × \frac{d}{dx} ((1+x)^{\frac{1}{2} }

   = \frac{1}{lna\sqrt{(1+x)} } × \frac{1}{2} (1+x)^{-\frac{1}{2} } × \frac{d}{dx} (1 + x)

   = \frac{1}{lna\sqrt{(1+x)} } × \frac{1}{2\sqrt{(1+x)} } × 1

   = \frac{1}{2lna(1+x)}

   = \frac{1}{(1+x)lna^2}

(b)

Given

y = ln sinx

\frac{dy}{dx} = \frac{1}{sinx} × \frac{d}{dx}(sinx)

   = \frac{1}{sinx} × cosx

   = \frac{cosx}{sinx}

   = cotx

5 0
3 years ago
Find the distance between the points (2, 2) and (8,-6).<br> ОА) 3<br> ов) 1<br> Ос) 10<br> OD) 12
Zina [86]

Answer:

Step-by-step explanation:

6 0
3 years ago
Which table represents a linear function?
Rus_ich [418]
Linear means that the y values go up in a fixed increment, k.
In the first one, you see that 3+4=7, 7+4=11, and so on, so you can immediately tell that it's linear.

The second one goes 3+5=8, then 8+7=15, then 15+6=21, which aren't the same numbers.

The third increases and decreases, so it's not linear.

The fourth goes 3+6=9, then 9+18=27, which you can immediately tell is not linear.

Therefore, the only linear table would be the first one.
3 0
3 years ago
Read 2 more answers
Determine if the following vectors are orthogonal, parallel, or neither.
charle [14.2K]

Answer:

the are parallel to eachother

8 0
3 years ago
Will give brainiest
raketka [301]

Answer:

What brainiest haaaaaaaa

5 0
3 years ago
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