Pls Help I will mark brainliest.

Answer:

C(12)=$570.18

C(20)=$57.08

Step-by-step explanation:

Exponential Decay Function

The exponential function is often used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function is expressed as:

[tex]C(t)=C_o\cdot(1-r)^t[/tex]

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The depreciation of goods is often modeled as an exponential function. The new car costs $18,000 and its price depreciates at r=25%= 0.25 every year.

The depreciation model is:

[tex]C(t)=18,000\cdot(1-0.25)^t[/tex]

Operating:

[tex]C(t)=18,000\cdot 0.75^t[/tex]

At t=12 years, the price will be:

[tex]C(12)=18,000\cdot 0.75^{12}[/tex]

C(12)=$570.18

At t=20 years, the price will be:

[tex]C(20)=18,000\cdot 0.75^{20}[/tex]

C(20)=$57.08

Hope this helps! 

Also can I please have Brainliest...?

Only if I'm right of course...

Answer:

Aproximately 25 days

Step-by-step explanation:

so he goes 15.12 mph and rides for 8 hours so 15.12*8=120.96

3069.25/120.69

=25.374091 round it to nearest whole number so its 25days

Answer:

[tex] \rm t = \dfrac{5 - b}{2} [/tex]

Step-by-step explanation:

Solve for t:

[tex] \longrightarrow [/tex] 5 - b = 2t

5 - b = 2t is equivalent to 2t = 5 - b:

[tex] \longrightarrow [/tex] 2t = 5 - b

Divide both sides by 2:

[tex] \longrightarrow [/tex] [tex] \sf \dfrac{2t}{2} = \dfrac{5 - b}{2} [/tex]

[tex] \sf \dfrac{2}{2} [/tex] = 1:

[tex] \longrightarrow [/tex] [tex] \sf t = \dfrac{5 - b}{2} [/tex]

Answer:

The number of visitors increases at the same rate over both intervals

Step-by-step explanation:

The unit rate at which the number of visitors in the park increases over a given temperature interval is called the average rate of change, or ARCARCA, R, C.

To find the average rate of change of a function over an interval, we need to take the total change in the function value over the interval and divide it by the length of the interval.

Hint #22 / 3

We are asked to compare the rates at which the number of visitors increases over the interval between an outside temperature of 181818 degrees Celsius and 202020 degrees Celsius, and over the interval between an outside temperature of 202020 degrees Celsius and 272727 degrees Celsius. These correspond to the domain intervals [18,20][18,20]open bracket, 18, comma, 20, close bracket and [20,27][20,27]open bracket, 20, comma, 27, close bracket.

Let's calculate the average rate of change of VVV over those intervals:

ARC_{[18,20]}ARC

[18,20]

​

A, R, C, start subscript, open bracket, 18, comma, 20, close bracket, end subscript ARC_{[20,27]}ARC

[20,27]

​

A, R, C, start subscript, open bracket, 20, comma, 27, close bracket, end subscript

\begin{aligned} \dfrac{V(20)-V(18)}{20-18}&=\dfrac{18-10}{2}\\\\&=\dfrac{8}{2}\\\\&=4\end{aligned}\quad

20−18

V(20)−V(18)

​

​

=

2

18−10

​

=

2

8

​

=4

​

 \begin{aligned} \dfrac{V(27)-V(20)}{27-20}&=\dfrac{46-18}{7}\\\\&=\dfrac{28}{7}\\\\&=4\end{aligned}

27−20

V(27)−V(20)

​

​

=

7

46−18

​

=

7

28

​

=4

​

Hint #33 / 3

The average rate of change over the interval [18,20][18,20]open bracket, 18, comma, 20, close bracket is the same as the average rate of change over the interval [20,27][20,27]open bracket, 20, comma, 27, close bracket.

Therefore, the number of visitors increases at the same rate over both intervals.

Using the average rate of change, it is found that the correct option is:

(A) Between outside temperatures of 18 degrees Celsius and 20 degrees Celsius.

The rate of change of a function is given by the change in the output divided by the change in the input.

When the temperature changes from 18 to 20 degrees, the number of visitors increase from 10 to 18, thus, the rate of change is:

[tex]r = \frac{18 - 10}{20 - 18} = \frac{8}{2} = 4[/tex]

When the temperature changes from 20 to 37 degrees, the number of visitors increase from 18 to 46, thus, the rate of change is:

[tex]r = \frac{46 - 18}{37 - 20} = \frac{28}{17} = 1.65[/tex]

First case has higher rate of change, thus, option A is correct.

A similar problem is given at https://brainly.com/question/20732437

Answer:

390 calories

Step-by-step explanation:

Answer:

20:12

Step-by-step explanation:

[tex]5:3 = \frac{5}{3} \\ 20:12 = \frac{20}{12} = \frac{5}{3} \\ = 5:3[/tex]

Answer:

20:12

Step-by-step explanation:

20divided by 4is 5

12 divided by 4 is 3

Answer:

112.5

Step-by-step explanation:

plz mark me brainlest if its correct lol

Answer:

112.5

Step-by-step explanation:

(Checked and correct)

Answer:

x = − 5, − 2

Step-by-step explanation:

x² + 7x + 10 = 0

x² + 5x + 2x + 10 = 0

x(x + 5) + 2 (x + 5) = 0

(x + 5)(x + 2) = 0

x = − 5, − 2

-TheUnknownScientist

Answer:

3

Step-by-step explanation:

180-75

105

105-3

102

102/34

3

Answer:3

34x+3+75=180

34x=180-78

34x=102

x=102/34

x=3

Answer:

A.

Step-by-step explanation:

Answer:

The answer is the first one but don't quote me on that

Step-by-step explanation:

Answer:

first term is 6

Step-by-step explanation:

MULTIPLY BY 4

1) 6  (1st term)

2)     6x4 = 24    (24 is the second)

3)    24 x 4 = 96 (96 is the 3rd)

4) 96 x 4 = 384 (384 the 4th)

Answer:

x  =  1 , − 7

Step-by-step explanation:

Find all solutions for  x  by breaking the absolute value into the positive and negative components.

Answer:

110.5

Step-by-step explanation:

208=13+(3-1)d

208=13+2d

-13. -13

195=2d

÷2. ÷2

97.5=d. (d means difference)

13(first term)+97.5=110.5(the answer

Answer:

36

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

Answer: 1 2/3 yards for each bow

Step-by-step explanation:

8 1/3 divided by 5 = 25/3 * 1/5 = 5/3

Answer:

-1 1/2,-1,-1/2,0,1/2,1

Step-by-step explanation:

negatives always go to the least, even if they have a bigger number

Answer:

$15.80

Step-by-step explanation:

First you multiply $1.40 times 3 to get $4.20 then you subtract the $4.20 from $20 to get $15.80

Answer:

b

B zero product property

Answer:

The Zero property

Step-by-step explanation:

anything multiplied by zero will give you a product of zero

Answer:

The answer is 64+56j+64

Answer:

-4

Step-by-step explanation: it is intercepting the -4 so i think -4 is the right answer

Answer:-4

Step-by-step explanation:

it bc the line crosses on -4

Answer:

4 units

Step-by-step explanation:

correct on edge

Answer:

4

Step-by-step explanation:

yes

Answer:

Given the formula for a function, determine the domain and range.

Exclude from the domain any input values that result in division by zero.

Exclude from the domain any input values that have nonreal (or undefined) number outputs.

Use the valid input values to determine the range of the output values.

Step-by-step explanation:

Answer: 96°

180-84 = 96

I hope this is good enough:

Answer:

commutative property

Step-by-step explanation:

it is

9514 1404 393

Answer:

Step-by-step explanation:

The rate of change in each case can be found by dividing right-column differences by left-column differences.

Table 1

  (56 -54)/(10 -9) = 2/1 = 2 . . . the constant rate of change

__

Table 2

  (3 -0)/(4 -0) = 3/4 . . . the constant rate of change

_____

Additional comment

Often, in math problems of this sort, you fill in a blank with a number. Above, we have computed those numbers. In real life, it is useful to consider the units that go with that number. The units are divided in the same way the numerical values are.

Table 1: 2 in/yr

Table 2: 3/4 °C/h

Answer:

it is nothing

Step-by-step explanation:

1-1=2