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
Nookie1986 [14]
3 years ago
14

If x^2+y^2 =25 and dy/dt =6, find dx/dt when y=4

Mathematics
1 answer:
adelina 88 [10]3 years ago
4 0
2x dx/dt +2y dy/dt =0
x dx/dt +y (6)=0
dx/dt= -6y/x
dx/dt= -6*4 /x
dx/dt=-24/x
<span>also from the given equation x^2= 25-16=9 or x=3
using this we get</span>
dx/dt=-24/3 =-8

You might be interested in
12. If ln(2x – 2) = 2t – 2, what is the value of x?
Katyanochek1 [597]

ln(2x – 2) = 2t – 2

2x-2=e^(2t-2)

x=e^(2t-2)/2+1

8 0
3 years ago
I want to know what the answer is in a fraction.
Anon25 [30]
Move all terms that don't contain K to the right side and solve.

K= Z/3 + 3
5 0
3 years ago
Please help, will give brainliest if right!
Nimfa-mama [501]

Answer:

a

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
An after school music program has 15 out of 50 students participating. Write 1550 as a decimal and as a percent. Decimal- Percen
yarga [219]

Answer:

0.3

30%

Step-by-step explanation:

To write 15/50 as a percent, you have to multiply the fraction by 100

\frac{15}{50} x 100

dividing 100 by 50 gives 2

15 x 2 = 30%

to convert 15/50 to a decimal, first simply the fraction.

Both the numerator and denominator can be divided by 5

3/10

the next step is to divide the numerator by the denominator

3/10 = 0.3

8 0
3 years ago
Complete the point slope equation of the line through (-5,7) (-4,0)​
icang [17]

Answer:

y-7= -7(x+5)

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Reduce the fraction 12/24 to the simplest form. Make sure that it can not be simplified any further. *
    13·1 answer
  • Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only)
    13·2 answers
  • Can someone please help me solve this question 17a + 1b - 7a + 3b + 17​
    5·2 answers
  • Hong hikes at least 1 hour but not more than 4 hours. She hikes at an average rate of 2.7 mph. The function f(t)=2.7t represents
    12·1 answer
  • What information do you need to write a sine or cosine equation?
    13·1 answer
  • Select all that apply.<br><br> Which lines have a slope of -2?
    10·1 answer
  • X² - 4x + 24<br>factor this​
    5·1 answer
  • A coordinate grid is shown below. 12 11 -1 0 -1 -2 Part A: Which point represents the origin? (2 points) Part B: Starting from t
    7·1 answer
  • What is the measure of the other acute angle? Pls explain how you got your answer
    5·1 answer
  • Liz made a 13-minute long-distance call that cost her $1.45 for the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!