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
Taya2010 [7]
3 years ago
11

the depth in a pond increases 3% each week. Before the rainy season started, the pond was 10 feet deep. What is the function tha

t best represents the depth of the pond each week and how deep is the pond after 8 weeks? Round your answer to the nearest foot.
Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Answer:

  • d = 10(1.03^t)
  • 13 ft

Step-by-step explanation:

For t in weeks, a reasonable exponential function describing the dept (d) might be ...

  d = 10(1.03^t)

Then, after 8 weeks, the depth is predicted to be ...

  d = 10(1.03^8) ≈ 12.67 ft ≈ 13 ft

You might be interested in
What is the value of X and Y?
Advocard [28]

Answer:

x = 5.25

y = 7.5

Step-by-step explanation:

Since line 1.5 is parallel to line x which is parallel to line y

then 2/(2+5) = 1.5/x

2x = 7(1.5)

2x = 10.5

x = 5.25

Similarly, 2/(2 + 5 + 3) = 1.5/y

2y = 10(1.5)

2y = 15

y = 7.5

3 0
2 years ago
A tank contains 100 kg of salt and 1000 L of water. A solution of a concentration 0.05 kg of salt per liter enters a tank at the
Umnica [9.8K]

Answer:

Step-by-step explanation:

Initial Quantity of salt Q(0) = 100 kg

Capacity of tank = 1000 L

Inflow of liquid = 10 l /minute and outflow = same rate thus leaving the content of volume 1000 L at any time

Assume after entering constantly mixes and drains out.

Concentration flow = inflow - outflow

= 0.05(10) - \frac{Q(t)}{1000} *10

i.e. Q'(t) = 0.5-0.01Q(t), Q(0) = 100

Q'(t) = -0.01(Q(t)-50), Q(0) = 100\\\frac{dQ}{Q-50} =-0.01 dt\\ln |Q-5| = -0.01t +C\\Q-50 = Ae^{-0.01t}

Use Q(0) = 5

-45 = A  

So the equation would be

Q-50 = -45 e^{-0.01t} \\Q(t) = 50-45 e^{-0.01t} \\

a) Initial concentratin = \frac{100}{1000} =0.10

b) Use the solution fo rDE substitute t =1

Q(1) = 50-45e^(-0.01) = 5.4477 kg

c) As t becomes large Q = 50

So concentration limit = 50/1000 = 0.05

8 0
3 years ago
Determine the equation of a line that passes through A(2,5) and is parallel to the line defined by 3x−y+12=0. State the equation
Vinvika [58]

Answer:

Step-by-step explanation:

-y = -3x - 12

y = 3x + 12

y - 5 = 3(x - 2)

y - 5 = 3x - 6

y = 3x - 1

6 0
4 years ago
A circle has a radius of 19 cm. Find the radian measure of the central angle that intercepts an arc of length 4 cm.
Alona [7]

Answer:

1134

Step-by-step explanation:

\pi \: radius  \: 2

=1134.114948

6 0
3 years ago
Fred Friedman writes a $45 check for groceries, but his account has only $20 in it. If an account becomes overdrawn,
pychu [463]

Answer:

-25 Since he doesn't have enough money, He will be charged so whatever he makes and puts in his account -25 will be subtracted for the payment.

Step-by-step explanation:

45 - 20 = -25

4 0
4 years ago
Other questions:
  • A fifth grade class sets up 418 chairs for a graduation ceremony. Each row has 22 chairs.
    5·1 answer
  • A gumball machine contains blue, pink,white and green gum balls. In the machine, 50% of the gumballs are blue, 10% are pink 20%
    14·1 answer
  • Suppose the first equation in a system of two linear equations is 12x + 7y = 25. The second equation being which of these will c
    13·1 answer
  • Let f(x) = x2 + 6 and g(x) = x + 8x . Find ( g o f)(­ -7)
    6·1 answer
  • Evaluate each expression.
    15·1 answer
  • I will mark you as brainliest PLZ HELP ASAP!!!.........
    13·1 answer
  • Convert the improper fractions to mixed numbers
    5·2 answers
  • Pls help I have a test today in math :( no 1 would help me pls try to help and its in 12:20 so I have a lot of time but pls help
    12·2 answers
  • F (x) = 2 (x + 1)^2 - 1
    12·1 answer
  • Find the value of a from the following data whose mean is 23 29,33, 27, a, 19, 17, 10 ​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!