1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LUCKY_DIMON [66]
3 years ago
6

If x^2 + xy = 20 and dx/dt = -4 when x = -5 and y = 1, what is dy/dt

Mathematics
1 answer:
SpyIntel [72]3 years ago
7 0

Answer:

3.2

Step-by-step explanation:

x² + xy = 20

Take the derivative with respect to time:

2x dx/dt + x dy/dt + y dx/dt = 20

(2x + y) dx/dt + x dy/dt = 20

Given x = -5, y = 1, and dx/dt = -4:

(2(-5) + 1) (-4) + (-5) dy/dt = 20

(-10 + 1) (-4) − 5 dy/dt = 20

36 − 5 dy/dt = 20

5 dy/dt = 16

dy/dt = 3.2

You might be interested in
Math am I right, well i need this asap. thanks for all the help!
monitta

Answer:

A

Step-by-step explanation:

5 0
2 years ago
The ratio of the angles in a triangle is 5:9:10. what is the measure of the largest angle?
Maksim231197 [3]

The measure of the largest angle is 75 degrees.

<h3>What is a triangle? </h3>

A triangle is a polygon with three sides and vertices. The sum of angles in a triangle is 180 degrees. Types of triangles include: right-angled triangle, isosceles triangle, equilateral triangle and scalene triangle.

<h3>What is the measure of the largest angle? </h3>

The measure of the largest angle = (largest ratio / sum of ratios) x 180

10 / 24 x 180 = 75 degrees

Please find attached an image of a triangle. To learn more about a triangle, please check: brainly.com/question/9329354

6 0
3 years ago
Identify the slope of the equation: y = 5x + 2
slega [8]

Answer:

slope is 5

Step-by-step explanation:

y=mx + b

y=5x =2

m = slope therefore is 5

5 0
3 years ago
A painter earns $15 per hour.What is the minimum number of hours he must work to earn at least $200?
babunello [35]
12 hours in order to make 200 dollars
5 0
3 years ago
Find the area of the parking space if the height is 18 feet and the base is 9 1/4 feet
Molodets [167]
Area= base x height
So, the base is 9 1/4 and the height is 18 feet
so, the Area= 9 1/4 x 18

9 1/4 x 18
= 166.5
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is x if 3x − 1 divided 4 = −5?
    14·2 answers
  • The graph of the equation is Ax+2y =-2 is the line that passes through (2,-2) what is value A
    9·1 answer
  • Not a question but thamks for helping
    10·2 answers
  • What is the x-intercept of the following equation? 4x + 2y = 12
    7·1 answer
  • There are 100 cookies and 80 brownies on a dessert table at a restaurant. Of these desserts, 12 cookies and 24 brownies contain
    8·1 answer
  • What is the distance between the two points? (-18, -6) &amp; (-18,-1)
    12·2 answers
  • It an exam pls help I’ll give brainiest:)
    6·1 answer
  • A classroom needs 3,200 paperclips for a project. If there are 200 paperclips in a package, how many packages will they need in
    10·2 answers
  • Find the midpoint of the segment with the following endpoints.<br> (−5,5) and (−10,2)
    14·1 answer
  • Help please!! if you can help me​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!