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MatroZZZ [7]
3 years ago
7

The current value of a new car is $24,000. The car will depreciate 12% per year over the next 5 years. Which exponential equatio

n models this situation?
A. f(x)=24,000 * 0.12^x
B. f(x)=24,000 * 0.88^x
C. f(x)= 24,000 * 5^x
D. f(x)= 24,000 * 1.12^x
Mathematics
2 answers:
Gemiola [76]3 years ago
8 0
I pretty sure it is A. but please someone check behind me
melomori [17]3 years ago
8 0

Answer:

B

Step-by-step explanation:

12%=0.12

100%-12%=88

88%=0.88

It’s depreciating by 12% not 88%.

If you put b in a calculator It will be more realistic than A.

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When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has incr
Andrews [41]

Answer:

  (a)  13.85 °C

Step-by-step explanation:

The temperature difference is a decaying exponential function of time. Here, it decreases from an initial difference of 15 °C to 10 °C after 25 minutes. So, that temperature difference can be modeled as ...

  ΔT = 15(10/15)^(t/25)

We want to find the value of this at t=55. It is ...

  ΔT = 15(2/3)^(55/25) ≈ 6.15

This is the amount the temperature of the drink is below room temperature.

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The temperature of the drink after 55 minutes is about 13.85 °C.

3 0
3 years ago
Pl help it’s for a grade I will give you Brainly if right
rodikova [14]

Answer:

b

Step-by-step explanation:

8 0
2 years ago
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What is the answer to -12/-9 is equal to what
Aleksandr [31]
\frac{-12}{-9}=\frac{12}{9}=\frac{12:3}{9:3}=\frac{4}{3}=\frac{3+1}{3}=\frac{3}{3}+\frac{1}{3}=1\frac{1}{3}
3 0
3 years ago
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What is the approximate diameter of a sphere with a volume of 268cm3
kogti [31]

Answer:

diameter ≈15.6

Step-by-step explanation:

To solve this;

volume of a sphere = 4/3 πr³

From the question given;

volume of the sphere = 268    

lets substitute   and solve for r

volume of sphere = 4/3 πr³

268 = 4/3 × 3.14 × r³

268 =4.19 × r³

Divide both-side of the equation by 4.19

268/4.19 = r³

63.96 = r³

Take the cube root of both-side

∛63.96 = r

7.8 ≈ r

but diameter = 2r = 2×7.8 =15.6

8 0
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