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2 years ago

What is the quadrilateral with two pairs of parallel sides?

Mathematics

1 answer:

goldfiish [28.3K]2 years ago

8 0

Parallelogram.........................

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Y=arccos(1/x) Please help me do them all! I don’t know derivatives :(

Stells [14]

Answer:

$f(x) = {sec}^{ - 1} x \\ let \: y = {sec}^{ - 1} x \rightarrow \: x = sec \: y\\ \frac{dx}{dx} = \frac{d(sec \: y)}{dx} \\ 1 = \frac{d(sec \: y)}{dx} \times \frac{dy}{dy} \\ 1 = \frac{d(sec \: y)}{dy} \times \frac{dy}{dx} \\1 = tan \: y.sec \: y. \frac{dy}{dx} \\ \frac{dy}{dx} = \frac{1}{tan \: y.sec \: y} \\ \frac{dy}{dx} = \frac{1}{ \sqrt{( {sec}^{2} \: y - 1}) .sec \: y} \\ \frac{dy}{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} } \\ \therefore \frac{d( {sec}^{ - 1}x) }{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} } \\ \frac{d( {sec}^{ - 1}5x) }{dx} = \frac{1}{ |5x | \sqrt{25 {x }^{2} - 1} }\\\\y=arccos(\frac{1}{x})\Rightarrow cosy=\frac{1}{x}\\x=secy\Rightarrow y=arcsecx\\\therefore \frac{d( {sec}^{ - 1}x) }{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} }$

4 0

1 year ago

Write the equation of a line that is perpendicular y=2/3x+9

Alex_Xolod [135]

To create a line that is perpendicular to the one given, completely invert the slope.

y = -3/2x + 9

6 0

2 years ago

Read 2 more answers

alls arrive at a call center at an average rate of 100/min. Depending on the availability of a service representative, calls may

NISA [10]

Answer:

the number of callers on average are in the system at any given time is 440

Step-by-step explanation:

Given that

The calls that arrive in a call center have an average rate of 100 per min

But it we involve the waiting time so the call needed 4.4 minutes

We need to to find no of callers are in the system at any given time

SO,

= 100 per min × 4.4

= 440

hence, the number of callers on average are in the system at any given time is 440

The same would be considered

5 0

2 years ago

X + 3 10 = 7 It’s a building and unbuild problem

Zanzabum

Answer: x=-303

Step-by-step explanation:

x+310=7

We move all terms to the left:

x+310-(7)=0

We add all the numbers together, and all the variables

x+303=0

We move all terms containing x to the left, all other terms to the right

x=-303

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2 years ago

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I don’t understand this i need help

larisa86 [58]

I think it’s BH but don’t get me wrong I don’t fully know

5 0

2 years ago