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2 years ago

What is the derivative of arctan (y/x) with respect to y??

Mathematics

1 answer:

ycow [4]2 years ago

8 0

<span>arctan(y/x) = d/dx
=1/x∗1/(1+(y/x<span>)^2</span>)</span>

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What is the solution to the compound inequality 3x-8>-5 and 2x-7<5

-BARSIC- [3]

Answer:

Step-by-step explanation:

3x - 8 > -5 <em>add 8 to both sides</em>

3x > 3 <em>divide both sides by 3</em>

x > 1

2x - 7 < 5 <em>add 7 to both sides</em>

2x < 12 <em>divide both sides by 2</em>

x < 6

From x > 1 and x < 6 we have the solution 1 < x < 6 ⇒ x ∈ (1, 6)

6 0

3 years ago

Simplify the expression.<br> (2.9)2 =

guapka [62]

Answer:

5.8

Step-by-step explanation:

2.9*2=5.8 give brainliest pls

4 0

2 years ago

Read 2 more answers

After 3.5 hours ,pasha had traveled 217 miles if she travels at the constant speed how far will she have travelled after 4 hours

vesna_86 [32]

Answer:

248 miles

Step-by-step explanation:

we know that

After 3.5 hours ,Pasha had traveled 217 miles

using proportion

Find out how many miles she will have traveled after 4 hours

$\frac{3.5}{217}\ \frac{hours}{miles}=\frac{4}{x}\ \frac{hours}{miles}\\\\x=217(4)/3.5\\\\x=248\ miles$

4 0

3 years ago

I HAVE 5 MIN TO TURN THIS IN!!!! PLEASE HELP ME!!!<br> IT'S IN THE IMAGE BELOW

Mariulka [41]

Answer:

<h3>a. x = 8 years</h3><h3>b. 52,000</h3><h3 />

Step-by-step explanation:

company A = 28,000 + 3,000 (x)

company B = 36,000 + 2,000 (x)

where x = no. of years.

<u>company A = company B</u>

28,000 + 3,000 (x) = 36,000 + 2000 (x)

3,000 (x) - 2,000 (x) = 36,000 - 28,000

1,000 (x) = 8,000

x = <u>8,000</u>

1,000

<h3>x = 8 years</h3>

plugin value of x = 8 into company A and B

company A = 28,000 + 3,000 (8)

<h3>company A = 52,000</h3>

company B = 36,000 + 2,000 (8)

<h3>company B = 52,000</h3>

5 0

2 years ago

the students in Jake's class , 6 have visited a zoo and 6 have visited a factory 3 students have visited both a zoo and a factor

AURORKA [14]

Answer:

Step-by-step explanation:

6 have visited a zoo.

6 have visited a factory.

3 visited both.

Of the 6 who visited a zoo, 3 also visited a factory.

Of the 6 who visited a factory, 3 also visited a zoo.

Here is the list of students:

3 visited a zoo but not a factory.

3 visited a factory but not a zoo.

3 visited both.

Answer: 3

6 0

2 years ago