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N76 [4]
3 years ago
15

in the year 2001, a person bought a new car for $22000. for each consecutive year after that, the value of the car depreciated b

y 5%. how much would the car be worth in the year 2005, to the nearest hundred dollars
Mathematics
1 answer:
igomit [66]3 years ago
7 0

Answer:

To the nearest hundred dollars, the car will be worth $17,900 by 2005

Step-by-step explanation:

Firstly, we need to write the depreciation equation

We have this as:

V = I(1 - r)^t

V is the present value which is what we want to calculate

I is the initial value, the amount the cad was bought which is $22,000

r is the rate of change which is 5% = 5/100 = 0.05

t is the time difference which is 2005-2001 = 4

Substituting all these into the depreciation equation, we have it that

V = 22,000(1 -0.05)^4

V = $17,919.1375

To the nearest hundred dollars, that would be;

$17,900

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What is the solution of the equation 2X = 7? Round your answer to the nearest ten-thousand.
Andru [333]

Answer:

x =2.8074

Step-by-step explanation:

2^x = 7

Take the log of each side

log (2^x) = log (7)

We know  log a^b = b log a

x log 2 = log 7

x = log (7) / log 2

x =2.80735

To the nearest tenth thousandth

x =2.8074

4 0
3 years ago
The radius of the sphere is 10 units. What is the approximate volume of the sphere? Use and round to the nearest whole cubic uni
erica [24]

Answer:

The approximate volume of the sphere= 4187  cubic units

Step-by-step explanation:

<u>Points to remember</u>

Volume of sphere = (4/3)πr³

Where 'r' radius of sphere

<u>To find the volume of sphere</u>

It is given that the radius of the sphere is 10 units. ,

Here radius r = 10 units

Volume =  (4/3)πr³

 =  (4/3) * 3.14 * 10³

 =  (4/3) * 3140

 =  4186.666 ≈  4187  cubic units

4 0
4 years ago
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What is the length of the third side of the window frame below?
Nostrana [21]

Answer:

C 40 inches

Step-by-step explanation:

You can use the pythagorean theorem to solve for the second leg. When you plug in 42 for a and 58 for c, you get 42^2 + b^2 = 58^2, then you can isolate b, which should be 40 inches.

8 0
3 years ago
Segment AB measures 3 cm. Point O is the center of dilation. How long is the image of AB after a dilation with . . .
Marianna [84]

Answer:

The image of AB will be 15 cm long after dilation by a scale factor of 5.

Step-by-step explanation:

We know that when an object is dilated by a scale factor, it gets reduced, stretched, or remains the same, depending upon the value of the scale factor.

  • If the scale factor > 1, the image is enlarged
  • If the scale factor is between 0 and 1, it gets shrunk
  • If the scale factor = 1, the object and the image are congruent

Rule to calculate the mage of the segment AB after dilation of the segment AB by a scale factor 5 centered at the origin

AB = length → A'B'  = 5(length)

It means the length of the image of the segment AB can be determined by multiplying the length of the original segment AB by 5.

so

AB = 3 cm

Thus, the length of image A'B' will be:

A'B' = 5(3) = 15 cm

Therefore, the image of AB will be 15 cm long after dilation by a scale factor of 5.

5 0
3 years ago
|a| if a&gt;0<br> Please help!
JulijaS [17]

Answer:

Step-by-step explanation:

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As (a) is always positive for a>0,   |a| = a

For contrast, If the range were a<0 where (a) is always negative, then |a| = -a

6 0
3 years ago
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