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
Sophie [7]
3 years ago
14

a vat of milk has spilled on a tile floor. the milk flow can be expressed with the function r(t) = 4t, where t represents time i

n minutes and r represents how far the milk is spreading. the spilled milk is creating a circular pattern on the tile. the area of the pattern can be expressed as a(r) = π r^2. part a: find the area of the circle of spilled milk as a function of time, or a[r(t)]. part b: how large is the area of spilled milk after 4 minutes? you may use 3.14 to approximate π in this problem.
Mathematics
2 answers:
salantis [7]3 years ago
4 0
4t=r
a=pir^2
sub 4t for r
a=pi(4t)^2
a=pi16t^2
a(t)=16pi(t^2)


A. a(t)=16pi(t^2)

B. sub 4 for t
a(4)=16pi4^2
a(4)=16pi16
a(4)=16*16*3.14
a(4)=803.84 square units



A. a(t)=16pi(t^2)
B. 803.84 square units

dexar [7]3 years ago
4 0

Part A:

Setting up the problem: A[r(t)] =  π (4t)^2

= Multiplying: A[r(t)] = 3.14 x 16t^2  

= Solving/Answer:  A[r(t)] = 50.24t^2

Part B: Area after 4 min of spilling = t=4

= r (4)= 4x4 =16

= Setting up the problem: A(16) = 3.14 x 16^2

= Multiplying:  A(16)= 3.14 x 256

= Solving/Answer: A(16) = 803.84

= The spilled area of milk after 4 min is 803.84.

You might be interested in
HELPPPPPPPP PLEASEEEEEEE!!!!!!!
Alja [10]

Answer:

false

Step-by-step explanation:

it's false negative

5 0
2 years ago
20 POINTS PLS HALP!!!
Morgarella [4.7K]

Answer:

number of people / land area = population density

57,714 / 836,109 ≈ 0.07 people/mi^2

3 0
3 years ago
Read 2 more answers
Find the difference 1-(5)​
bazaltina [42]

Answer:

-4

Step-by-step explanation:

Subtract 1 - 5 = -4...

Since 1 is less than 5, we know that the difference is negative, so we can rewrite this expression as -(5-1).

5 - 1 = 4, so - (5-1) = -4.

6 0
3 years ago
Read 2 more answers
Pls help me guys!<br> Thanks :D
kozerog [31]
The top right is the answer. The base should be square with lengths of 8 and the height is 10.
6 0
2 years ago
Read 2 more answers
What is the solution of the system?
liberstina [14]

Answer:

if you download photomath it will tell u all the math problems to answer

8 0
3 years ago
Other questions:
  • Sharon writes this sentence:
    6·2 answers
  • A plant's initial height is 7 inches tall. The plant grows 1.3 inches each day for 27 days before the plant falling over 0.5 inc
    5·1 answer
  • Will give brainliest for thiss
    5·2 answers
  • 2. A rectangular piece of paper
    14·2 answers
  • Which of the following are solutions to the equation below?
    7·1 answer
  • Find the distance between (-1,4) and (5,7).
    9·1 answer
  • In the expression 3x + 5x – 3y + 5, which terms are “like terms”?
    9·2 answers
  • Can someone help with this question and either answer 1, 2, or both. Thanks
    10·1 answer
  • A company pays 12% commission on sales less than $7,000.00. 14% commission on sales
    5·1 answer
  • Plot the following and their opposites on the number line.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!