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
TiliK225 [7]
3 years ago
5

Xy=1 for x=2, dx/dt= -2 find dy/dt

Mathematics
1 answer:
dexar [7]3 years ago
7 0
\bf xy=1\iff y = \cfrac{1}{x}\iff y = x^{-1}\\\\
-----------------------------\\\\
\cfrac{dy}{dt}=-x^{-2}\cdot \cfrac{dx}{dt}\impliedby \textit{using the chain-rule}
\\\\\\
\left. \cfrac{dy}{dt}=-\cfrac{\frac{dx}{dt}}{x^2} \right|{
\begin{array}{llll}
x=2\\
\frac{dx}{dt}=-2
\end{array}}\implies \cfrac{dy}{dt}=-\cfrac{-2}{2^2}
You might be interested in
PLEASE HELP! WILL GIVE BRAINLIEST!
VMariaS [17]

Answer:

Answer: the equivalent form of 6(2x+3x+10) are 12x+18x + 60 and 30x+60.

Hope this helps

8 0
3 years ago
Read 2 more answers
Please answer this for me. Please. I'll mark whoever answers as brainliest.
zysi [14]

Answer:

C) 60 ft

Step-by-step explanation:

From any dot in the graph you can figure out the speed.

Let's take the one at 2 minutes, because it is on a grid point.

That one tells us that in 2 minutes, the animal travels 40 feet.

That means in 1 minute, it travels half that, i.e., 20 feet.

So in 3 minutes it will travel 20*3=60 feet.

4 0
3 years ago
What is the base 8 representation of the number 11100111
katovenus [111]

If the given number is in base 2, that means

11100111₂ = 2⁷ + 2⁶ + 2⁵ + 2² + 2 + 1

8 = 2³, and so we have

11100111₂ = 2 • (2³)² + (2³)² + 2² • 2³ + 2² + 2 + 1

11100111₂ = 3 • 8² + 4 • 8 + 7

11100111₂ = 347₈

Because 8 is the 3rd power of 2, we can also split up the given number into block of length up-to 3, then convert each block directly into base 8:

11 100 111

11₂ = 2 + 1 = 3

100₂ = 2² = 4

111₂ = 2² + 2 + 1 = 7

so again we get 347₈.

6 0
3 years ago
Could someone help me real quick? <br> What is the value of x?
babymother [125]

Answer:

x=19

Step-by-step explanation:

We know that the interior angles of a triangle add up to 180 degrees. We already have one angle, the bottom one, so let's just get that out of the picture by subtracting it from 180. The other two angles add up to be 80 degrees. What we can do is combine them together and get 4x-4=80. We have 4x because of x+3x. It equals 80 because that's what the two angles together add up to be. What we want to do now is get x by itself. Subtract 4 from both sides and get 4x=76. Now, we divide by 4, to undo multiplication. We are left with x=19, and now we have our answer.

6 0
3 years ago
Yulian works at the zoo feeding the animals. He puts water in the elephant habitat at the beginning of the day. The table shows
kodGreya [7K]
(y - 29) = 4 (x - 36)
6 0
4 years ago
Read 2 more answers
Other questions:
  • PLEASE HURRY!!!
    13·2 answers
  • J scored 80% on a test. He missed 4 problems. How many problems were on the test?
    9·2 answers
  • Point o is the center. What is m
    12·1 answer
  • |x-9|=-4<br> How would I go to solve this equation
    9·1 answer
  • I need help plzzzz help me
    15·1 answer
  • 15 points , help!
    15·1 answer
  • Kadence took a random sample of students at her school and asked them how much they typically slept on a school night versus a w
    8·1 answer
  • Last week Sally had thirty-nine dollars. She washed cars over the weekend and now has sixty-four dollars. Write an equation that
    13·1 answer
  • Your answer
    12·1 answer
  • What does 25000(1-0.8)^8 equal
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!