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lora16 [44]
3 years ago
8

A car loses value each year the value of the car (t) years ‏ can be modeled using the function f(t)=15000(0.85) ^t. If Elizabeth

wants to sell her car in 2 1/3 years what will the cars value be when she sells it?
Mathematics
1 answer:
emmainna [20.7K]3 years ago
6 0
F(t)=15000(0.85) ^t   =>  <span>f(t) = $15000(0.85) ^t

Substitute 2 1/3 for t in this equation.  This is equivalent to 7/3.

</span> f(7/3) = $15000(0.85)^(7/3)
           = $10266.02  (answer)
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Between what two consecutive integers is <img src="https://tex.z-dn.net/?f=%5Csqrt182" id="TexFormula1" title="\sqrt182" alt="\s
Elden [556K]

Answer:

C. 13 and 14

Step-by-step explanation:

They notice that the square root of 182 is between 13 an 14, and it gives them the idea that the numbers 13 and 14 are the solution.

Let n be the smaller of the two consecutive integers.

   Then the other integer is  (n+1).

   We are given that  

      n*(n+1) = 182.

   Simplify

      n^2 + n - 182 = 0,

   Factor left side

      (n-13)*(n+14) = 0.

   The solutions are  n= 13  and  n= -14.

   You may check that both of them satisfy the problem' condition, giving you two answers

       the pair  (13,14)  and the pair  (-14,-13).

 

Many people prefer to solve this problem in a short way.

   They notice that the square root of 182 is between 13 an 14,

   and it gives them the idea that the numbers 13 and 14 are the solution.

   Then these people get the next idea that if the product of 13 and 14 is equal to 182,

   then the product of the opposite numbers is also 182, so

           both the pairs (13,14)  and  (-14,-13)  are solutions.

Solved and explained in detailed and short modes.

7 0
3 years ago
Ciara buys 7 lb of strawberries for $5.81. How much would she spend if she wanted 15 lb of strawberries?
wlad13 [49]

by multiplication of 15 and 5.81 answer is the

87.15

8 0
3 years ago
Read 2 more answers
Eric is planning to paint the four pillars that are attached to the front of his house. But, he needs to know how many square fe
mariarad [96]
Assume that the pillars are cylindrical..you're looking for the lateral surface area correct? to get the lateral surface area, you use the formula LSA = 2rh(pi) where r is radius h is height substitute the values... h = 10 d = 1 so r =1/2 so LSA = 2 (1/2)(10)(3.14) LSA = 10(3.14) LSA = 31.4 sq ft :D                                      Can You Mark Me Brainlest Plz...
6 0
3 years ago
Read 2 more answers
Which of the following best describes the graphs below?​
Ede4ka [16]

Answer:

The 3rd statement best describes the graphs.

Step-by-step explanation:

The 3rd statement best describes the graphs because they must be similar. The two triangles cannot be congruent because Triangle A must be dilated to become Triangle B.

Multiplying by a scale factor of 1/2 would cause the shape to shrink, but multiplying by a scale factor of 2 would cause the shape to grow.

4 0
3 years ago
Find the highest common factor (HCF) of 72 and 98.​
Y_Kistochka [10]

<em>Answer:</em>

<em>2</em>

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

<em>The factors of 72: 1, </em><em>2</em><em>, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72</em>

<em>The factors of 98: 1, </em><em>2</em><em>, 7, 14, 49, 98 </em>

<em>Your greatest common factor is 2.</em>

<em>Hope this helps. Have a nice day.</em>

3 0
3 years ago
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