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3 years ago

Richard bought a car for $2,500. The value of the car depreciates by 5% each year,

Mathematics

2 answers:

sladkih [1.3K]3 years ago

6 0

Step-by-step explanation:

Hello, there!!!

The answer is option D.

I have given solution on the picture.

Hope it helps.....

MA_775_DIABLO [31]3 years ago

5 0

Hello there the answer is d!!

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How do i find the radius of a cylinder with only surface area and height

Dima020 [189]

Answer:

The area of a circle is defined as A=pi*R*R. To find the radius, first divide A/pi. The answer would be the square of the radius; therefore, the square root of A/pi is the radius of the cylinder. Volume is defined as V=pi*R*R*H, or V=A*H. Dividing the volume by the area V/A would result in the height of the cylinder.

Step-by-step explanation:

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3 years ago

A rectangular computer screen measures 17 inches on the diagonal.The Width is 15 inches. What is the height of the screen?

Elza [17]

You're going to need the pythagorean theorem, which is a^2+b^2=c^2. 15^2 is 225, 17^2 is 289, and if you work out the equation you get to an answer of 8 inches.

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3 years ago

How can we find the volume of the fish tank

tamaranim1 [39]

Answer:

times the height, width and base

Step-by-step explanation:

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3 years ago

Does dose anyone know how to solve this?

solniwko [45]

Answer:

Width of rectangle = 6 m

Length of rectangle = 11 m

Step-by-step explanation:

Let width of rectangle = w

Length of rectangle = 3w-7

Area of rectangle = 66 m²

We need to find length and width of rectangle

The formula used is: $Area=Length \times Width$

Putting values and finding w

$Area=Length \times Width\\66=(3w-7)(w)\\66=3w^2-7w\\3w^2-7w-66=0\\$

Solve using quadratic formula: $w=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We have a=3, b=-7, c=-66

Putting values and finding w

$w=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\w=\frac{-(-7)\pm\sqrt{(7)^2-4(3)(-66)}}{2(3)}\\w=\frac{7\pm\sqrt{49+792}}{6}\\w=\frac{7\pm\sqrt{841}}{6}\\w=\frac{7\pm29}{6}\\w=\frac{7+29}{6}\:,\:w=\frac{7-29}{6}\\w=6, w=-3.6$

We get values of w as w=6 and w=-3.6

As we know width cannot be negative, so considering w = 6

So, Width = 6

Length = 3w-7 = 3(6)-7 = 18-7 = 11

So, Width of rectangle = 6 m

Length of rectangle = 11 m

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3 years ago

3. Justin went to the movies and

solmaris [256]

Answer:

7.35

Step-by-step explanation:

4.25+2.75=7.00 before tax

7.00 x .05=.35 sales tax

7.00+ .35=7.35 total bill

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3 years ago