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Pani-rosa [81]
3 years ago
12

Elisa bought a car for $12,000 ten years ago. It has depreciated at a rate of 9% per year since she bought it. Write an expressi

on to show the value of the car now. Then find out how much the car is worth now.
Mathematics
1 answer:
Veronika [31]3 years ago
8 0
$12,000 - $1080Y = V (Value) it is now worth $1,200
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PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
Keith_Richards [23]

Answer: \bold{D.\ \bigg(-\infty, \dfrac{ln\ 4}{0.2}\bigg)}

<u>Step-by-step explanation:</u>

y=\dfrac{c}{1+ae^{-rx}}\qquad \text{where growth rate increases from}\ -\infty\ to\ \dfrac{ln\ a}{r}

f(x) = \dfrac{15}{1+4e^{-0.2x}}\qquad \rightarrow \qquad a=4, r=0.2

\text{So, the growth rate increases over the interval}\ \bigg(-\infty, \dfrac{ln\ 4}{0.2}\bigg)

4 0
4 years ago
Use the commutative property to create equivalent expressions. Which expressions are equivalent to 2.2t + 3.5 + 9.8? Check all t
aev [14]

The answer is:

3.5 + 2.2t + 9.8 (Option 1).

9.8 + 3.5 + 2.2t (Option 4).

2.2t + 9.8 + 3.5 (Option 5).

The explanation for this answer is shown below:

1. The commutative property of addtion establishes that if you change the order of the addends, the sum will not change.

2. Let's say that a and b are real numbers, Then they can added them to obtain a result c:

a+b=c

3. If you change the order, you will obtain the same result:

b+a=c

4. Therefore, the only options that show the applicaction of this property, are the options shown above.

7 0
3 years ago
Read 2 more answers
Find the compound Interest for Rs.18,800 ,calculated for 2 years at 13% rate of Interest compounded annually
Vinvika [58]

For compound interest, the formula is given below:

Amount = P(1+\frac{r}{100} )^{n}

Here, P = 18,800

n = 2

r = 13/100

So, Amount = 18,800(1+\frac{13}{100} )^{2}

18,800(1.13)^{2}

= 18,800 × 1.2769

= 24005.72

Compound Interest = Amount - Principal

Compound Interest = 24005.72 - 18800

= 5205.72

Hence, the compound interest for Rs.18,800, calculated for 2 years at 13% rate of interest compounded annually is Rs.5205.72.


4 0
3 years ago
Find (gof)(-7)
MArishka [77]

Answer:

g(f(x))=(−3x+7)2−8                   (a. -55/7)

Step-by-step explanation:

f(x)=−3x+7g(x)=x2−8g(f(x))=(−3x+7)2−8

and i like you pfp! Hope i helped if wrong tell me.

~Ally

3 0
2 years ago
Read 2 more answers
What's the answer of.. <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4a%20%7B%7D%5E%7B2%7D%20%7D%7B16a%20%7B%7D%5E%7B5%7D%2
KatRina [158]

Answer:

\large\boxed{\dfrac{1}{4}a^{-3}b^3=\dfrac{b^3}{4a^3}}

Step-by-step explanation:

\dfrac{4a^2b^5}{16a^5b^2}\qquad\text{use}\ \dfrac{x^n}{x^m}=x^{n-m}\\\\=\dfrac{4}{16}a^{2-5}b^{5-2}=\dfrac{1}{4}a^{-3}b^3\qquad\text{use}\ x^{-n}=\dfrac{1}{x^n}\\\\=\dfrac{b^3}{4a^3}

3 0
3 years ago
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