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
baherus [9]
3 years ago
12

Suppose xy=−4 and dy/dt=−3. Find dx/dt when x=−1.

Mathematics
1 answer:
user100 [1]3 years ago
4 0
When x=-1: \quad (-1)y=-4\qquad\to\qquad y=4\)

Ok that gives us a little more information.
If we implicitly differentiate with respect to t, from the very start, then we can apply our product rule, ya?

x'y+xy'=0

The right side is zero, derivative of a constant is zero.
Where x' is dx/dt and y' is dy/dt.

From here, plug in all the stuff you know:
y' = -3
x = -1
y = 4

and solve for x'.

Hope that helps!
You might be interested in
Math help, brainly i don't wanna write more words
olchik [2.2K]
1) is the first answer and 2) is the last answer
3 0
3 years ago
Read 2 more answers
Georgie spent 15 hours doing her chores last week. This week
Oksana_A [137]

Answer:

Yes. Explanation: 120%=1.2. If Maxine is correct, then she spent 1.2 times the hours she did homework than last week. 15⋅1.2=18.0=18.

Yes Explanation: 120

3 0
3 years ago
including the bus driver, there are 15 people on a bus. During the bus ride, each person produces 750 BTUs. The interior of the
Bond [772]
54 i just answered it
8 0
3 years ago
Solve the equation
NNADVOKAT [17]

Answer:

<em>x = 0.04979</em>

Step-by-step explanation:

ln x = -3

x = e^(-3)

x = 1/e^3

x = 0.04979

8 0
3 years ago
Read 2 more answers
What is the value of this expression when a= - 3 and b=-2?<br> (3a^-2b^6/2a^-1b^5)^2
lisabon 2012 [21]

Answer:

so lets just rewrite it with A=-3 amd B=-2

(-9^4^-9^2^5)^2

which is equal to... 1!

Hope This Helps!!!

7 0
2 years ago
Other questions:
  • For a normal population with a mean of m = 80 and a standard deviation of s = 10, what is the probability of obtaining a sample
    12·1 answer
  • Which property is used to simplify the expression 5(3x +18) to 15x+90
    10·1 answer
  • Sania cut two pieces of string for a craft project. The first piece was 4.07 meters long. The second piece was 6.35 meters long.
    11·1 answer
  • To find probability, divide the number of __________ by the number of trials
    6·2 answers
  • What is the area of this triangle in coordinate plane
    13·2 answers
  • What is the value of x?
    15·1 answer
  • Miguel has $20 to spend on going to a movie. If he spends $7.25 on a move ticket, $3.95 for snacks, and $1.75 for bus fare, how
    11·1 answer
  • Will give brainliest answer
    6·1 answer
  • Ollie has $55.75 for his visit to the zoo. He must pay $7.25 for admission and wants to feed as many animals as he can. Food for
    11·1 answer
  • Please help brainliest who answer's first and correct
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!