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
EleoNora [17]
3 years ago
11

The volume Vr (in cubic meters) of a spherical balloon with radius r meters is given by =Vr43πr3. The radius Wt (in meters) afte

r t seconds is given by =Wt+8t3. Write a formula for the volume Mt (in cubic meters) of the balloon after t seconds. It is not necessary to simplify.
Mathematics
1 answer:
vazorg [7]3 years ago
4 0

Answer:

Volume of balloon as a function of time is given by V(t)=\frac{2048}{3}\pi t^{9}m^{3}

Step-by-step explanation:

We know that volume of a sphere with radius 'r' is given by

V_{r}=\frac{4}{3}\pi r^{3}

Now it is given that radius as a function of time is given by

r(t)=8t^{3}

using this value in the relation for volume of the balloon we obtain volume as a function of time as

V(t)=\frac{4}{3}\pi\times (8t^{3})^{3}\\\\\therefore V(t)=\frac{2048}{3}\pi t^{9}m^{3}

You might be interested in
Use Lagrange multipliers to find the dimensions of the box with volume 1728 cm3 that has minimal surface area. (Enter the dimens
Dima020 [189]

Answer:

(x,y,z) = (12,12,12) cm

Step-by-step explanation:

The box is assumed to be a closed box.

The surface area of a box of dimension x, y and z is given by

S = 2xy + 2xz + 2yz

We're to minimize this function subject to the constraint that

xyz = 1728

The constraint can be rewritten as

xyz - 1728 = 0

Using Lagrange multiplier, we then write the equation in Lagrange form

Lagrange function = Function - λ(constraint)

where λ = Lagrange factor, which can be a function of x, y and z

L(x,y,z) = 2xy + 2xz + 2yz - λ(xyz - 1728)

We then take the partial derivatives of the Lagrange function with respect to x, y, z and λ. Because these are turning points, each of the partial derivatives is equal to 0.

(∂L/∂x) = 2y + 2z - λyz = 0

λ = (2y + 2z)/yz = (2/z) + (2/y)

(∂L/∂y) = 2x + 2z - λxz = 0

λ = (2x + 2z)/xz = (2/z) + (2/x)

(∂L/∂z) = 2x + 2y - λxy = 0

λ = (2x + 2y)/xy = (2/y) + (2/x)

(∂L/∂λ) = xyz - 1728 = 0

We can then equate the values of λ from the first 3 partial derivatives and solve for the values of x, y and z

(2/z) + (2/y) = (2/z) + (2/x)

(2/y) = (2/x)

y = x

Also,

(2/z) + (2/x) = (2/y) + (2/x)

(2/z) = (2/y)

z = y

Hence, at the point where the box has minimal area,

x = y = z

Putting these into the constraint equation or the solution of the fourth partial derivative,

xyz - 1728 = 0

x³ = 1728

x = 12 cm

x = y = z = 12 cm.

7 0
3 years ago
PLEASE HELP ME IN THIS PROBLEM ASaPPPP
mash [69]

Answer:

a

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
REALLY URGENT. 1 3/5 divided by 2/5
Nikolay [14]

Answer:

4

Step-by-step explanation:

<em>1 3/5(2/5) = 4</em>

7 0
3 years ago
Read 2 more answers
From her window 5m above the ground, Sherri spots a turtle on the ground at a 34 degree angle of depression. To the nearest tent
Thepotemich [5.8K]
Let y be the distance from the turtle to the base of the building.

tan (34) = 5/y
y = 5 ÷ cos(34) 
y = 7.4m

-----------------------------------------------------------------
Answer: The distance is 7.4 meters (Answer A)
-----------------------------------------------------------------
3 0
3 years ago
A house is 46.0 ft long and 50 ft wide, and has 8.0-ft-high ceilings. what is the volume of the interior of the house in cubic m
I am Lyosha [343]
Volume of house = 46*50*8=18400 ft^3
Each foot equals 0.3048 m. (exactly).
Therefore 1 ft^3 = 0.3048^3 m^3
Therefore volume of the interior of the house 
= 18400 ft^3 * .3048^3 m^3/ft^3
=18400*.3048^3 m^3
=521.0299772928 m^3
=521 m^3 (nearest m^3) ................(a)
or, in cubic centimeters
=521 m^3 * (100cm/m)^3
=521.0299772928 * 100^3 cm^3
=521029977.2928 cm^3
=521029977 cm^3  (nearest cm^3) .........(b)

Answer: see (a) and (b).
4 0
3 years ago
Other questions:
  • A producer of personal computer mouse pads determines that the number, N, of pads sold is related to the price, X, of a pad by N
    15·1 answer
  • Write the sum of 5x2 + 2x - 10 and 2x2 + 6 as a polynomial in standard form.
    13·2 answers
  • How do you solve this
    11·1 answer
  • The perimeter of a square is represented by the expression 32x - 12.8
    10·1 answer
  • Find the y value for point F such that DF and EF form a 1:3 ratio. (5 points) Segment DE is shown. D is at negative 3, negative
    7·2 answers
  • A bank pays 5% interest compounded annually. What principal will grow to $12,000 in 10 years.
    13·1 answer
  • Can you guys help me!!!
    6·1 answer
  • What is the total length of her route? Round to the nearest hundredth. (1 mile = 5,280 feet) I NEED THIS NOW PLSSSS
    15·2 answers
  • The scale on a map says that 3 cm represents 12 km what is the actual number of km represented by 5 cm on the map
    8·1 answer
  • What is the best estimate of the perimeter of the figure on the grid if each square has side lengths of 1 mm?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!