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
gregori [183]
2 years ago
8

Can anyone answer this ?

Mathematics
1 answer:
vladimir1956 [14]2 years ago
4 0
Chileeeeeeeeeeeeeeeeeeeeeeeeeee
You might be interested in
Can someone please help me with this ⬆️⬆️⬆️it's the picture above ... 13/78=×/12
ratelena [41]
I am pretty sure x=2
3 0
3 years ago
Read 2 more answers
The table shows the ratio of caramel corn to cheddar cornvin a bag. What is the constant propotionality?
zvonat [6]
Since we know is a proportionality, namely a multiplier on "x", we can simply use any of those points, say hmmm let's use 10, 15,

\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\
\textit{we know that }
\begin{cases}
x=10\\
y=15
\end{cases}\implies 15=k10\implies \cfrac{15}{10}=k\implies \cfrac{3}{2}=k
8 0
3 years ago
Litter such as leaves falls to the forest floor, where the action of insects and bacteria initiates the decay process. Let A be
Travka [436]

Answer:

D = L/k

Step-by-step explanation:

Since A represents the amount of litter present in grams per square meter as a function of time in years, the net rate of litter present is

dA/dt = in flow - out flow

Since litter falls at a constant rate of L  grams per square meter per year, in flow = L

Since litter decays at a constant proportional rate of k per year, the total amount of litter decay per square meter per year is A × k = Ak = out flow

So,

dA/dt = in flow - out flow

dA/dt = L - Ak

Separating the variables, we have

dA/(L - Ak) = dt

Integrating, we have

∫-kdA/-k(L - Ak) = ∫dt

1/k∫-kdA/(L - Ak) = ∫dt

1/k㏑(L - Ak) = t + C

㏑(L - Ak) = kt + kC

㏑(L - Ak) = kt + C'      (C' = kC)

taking exponents of both sides, we have

L - Ak = e^{kt + C'} \\L - Ak = e^{kt}e^{C'}\\L - Ak = C"e^{kt}      (C" = e^{C'} )\\Ak = L - C"e^{kt}\\A = \frac{L}{k}  - \frac{C"}{k} e^{kt}

When t = 0, A(0) = 0 (since the forest floor is initially clear)

A = \frac{L}{k}  - \frac{C"}{k} e^{kt}\\0 = \frac{L}{k}  - \frac{C"}{k} e^{k0}\\0 = \frac{L}{k}  - \frac{C"}{k} e^{0}\\\frac{L}{k}  = \frac{C"}{k} \\C" = L

A = \frac{L}{k}  - \frac{L}{k} e^{kt}

So, D = R - A =

D = \frac{L}{k} - \frac{L}{k}  - \frac{L}{k} e^{kt}\\D = \frac{L}{k} e^{kt}

when t = 0(at initial time), the initial value of D =

D = \frac{L}{k} e^{kt}\\D = \frac{L}{k} e^{k0}\\D = \frac{L}{k} e^{0}\\D = \frac{L}{k}

4 0
3 years ago
How do I do this problem
KiRa [710]
R=6 & s=1/4
Just plug that in to the equation.
6+1/4 +14(1/4)
6.25 +3.5
9.75 or 39/4
4 0
2 years ago
Read 2 more answers
Six times a number is two hundred and forty what is The number
butalik [34]
240/6=x
x=40

the number is 40
4 0
3 years ago
Read 2 more answers
Other questions:
  • Express 3.01 as a mixed number
    6·1 answer
  • lindsey read a total 85 books over 17 months. if lindsey has read 105 books so far, how many months has she been with her book c
    13·1 answer
  • A lamp shade has a radius of 9 inches. What is the circumference of the top of the shade? Use 3.14 to approximate pi. Round your
    8·2 answers
  • The number of students in a school's Spanish club is ten less than four times the number of students in the chess club. Let c re
    14·2 answers
  • Question 4<br> A rotation on the origin counterclockwise goes to the right.<br> O True<br> O False
    13·1 answer
  • 1<br> Is the value of -6 -6 POSITIVE, NEGATIVE, or ZERO?
    11·1 answer
  • On a certain day, Tim invested $1,000 at 10 percent annual interest, compounded annually, and Lana invested 2,000 at 5 percent a
    15·1 answer
  • Simplify, THEN evaluate for x = 3, y = -4, and z= -2.<br> 7(x - y) - 3(2 + 2x)
    8·1 answer
  • What is the equation in slope intercept form for (2,5) (3,12)
    7·1 answer
  • When 7/11 is written as a decimal, what is the sum of the first 20 digits after the decimal point? Pls Help
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!