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
Luden [163]
3 years ago
11

At time t is greater than or equal to zero, a cube has volume V(t) and edges of length x(t). If the volume of the cube decreases

at a rate proportional to its surface area, which of the following differential equations could describe the rate at which the volume of the cube decreases?
A) dV/dt=-1.2x^2
B) dV/dt=-1.2x^3
C) dV/dt=-1.2x^2(t)
D) dV/dt=-1.2t^2
E) fav/dt=-1.2V^2
Mathematics
1 answer:
True [87]3 years ago
5 0

Answer:

C

Step-by-step explanation:

V(t) = [x(t)]³

A(t) = 6[x(t)]²

dV/dt = k × 6[x(t)]²

Where k < 0

From the options,

taking k = -0.2

dV/dt = -1.2[x(t)]²

You might be interested in
The costs the company $0.02 per cubic inch of oatmeal to fill a container. The company does not want the new container to cost m
In-s [12.5K]

Answer:

It is container A

Step-by-step explanation:

just took the quiz

5 0
3 years ago
Read 2 more answers
What is the value of m in the equation 38(m−29)=434 ?
Len [333]
38(m - 29) = 434...distribute thru the parenthesis
38m - 1102 = 434...add 1102 to both sides
38m = 434 + 1102
38m = 1536....divide both sides by 38
m = 1536/38
m = 768/19 or 40 8/19
8 0
3 years ago
What percent of 94 is 47
ASHA 777 [7]

Answer:

50%

Step-by-step explanation:

47 is half of 94 which is the same thing as 50% of 94

7 0
3 years ago
Read 2 more answers
What is the reason for each strip on the solution of the equation?
Pani-rosa [81]

Step 1: Given

Step 2:  Distributive Property

Step 3: Addition Property of  Equality

Step 4: Division Property of  Equality

Step-by-step explanation:

We need to match the reason with the correct step in the equation.

Equation:

Given:

2x = -4(x-3)

Applying Distributive property a(b+c)=ab+ac

2x=-4x+12

Now, Applying addition property of equality:

Adding +4x on both sides

2x+4x=-4x+12+4x\\6x=12

Now, Applying Division property of Equality:

Divide both sides by 6:

\frac{6x}{6}=\frac{12}{6}\\x=2

So, Answer will be:

Step 1: Given

Step 2:  Distributive Property

Step 3: Addition Property of  Equality

Step 4: Division Property of  Equality

Keywords: Solving Equations

Learn more about Solving Equations at:

  • brainly.com/question/1563227
  • brainly.com/question/2403985
  • brainly.com/question/11229113

#learnwithBrainly

7 0
2 years ago
Simplify.<br><br> 8u+9v+3u−5v<br><br> What is the answer?
pochemuha

8u + 9v + 3u - 5v = (8u + 3u) + (9v - 5v) = 11u + 4v

8 0
3 years ago
Read 2 more answers
Other questions:
  • Letter b on number 11 is all I need help with. Thank you
    12·1 answer
  • Prove that root3 (cosec (20))-sec (20)=4
    14·2 answers
  • What does 2 + 2 = ?
    15·2 answers
  • Brian and Christina started keeping track of their workouts. Brian did 85 sit-ups the first week and 90 sit-ups each week after
    11·1 answer
  • Find the distance between the pair of points and then round your answer to the nearest tenth.
    14·1 answer
  • Im a boy im in 7th grade 13 years old and single i need some help
    9·1 answer
  • I really need this right now
    7·1 answer
  • IS<br> ΔABC » ΔQRS<br> Find the missing side length, x.
    13·1 answer
  • Original price of $52 after a 20% discount
    6·2 answers
  • True or False? If ab&lt;0, then a&lt;0, b&gt;0 or a&gt;0, b&lt;0
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!