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3 years ago

A piece of machinery depreciates $6000 the first year,

Mathematics

1 answer:

otez555 [7]3 years ago

7 0

Answer:

$4500

Step-by-step explanation:

it decreases $300 per yeae

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Can anyone help? Please.

lisabon 2012 [21]

Answer:

29.9

Step-by-step explanation:

Divide the earnings by the time.

179.4/6 = 29.9

418.6/14 = 29.9

867.1/29 = 29.9

3 0

3 years ago

Solve x2 – 3x – 10 = 0 by factoring.

OLga [1]

Answer:

x = 5, -2

Step-by-step explanation:

basic format is ax^2 + bx + c. multiply ac and ask urself what # + what is equal to b? those two same numbers should also multiply to get you ac.

x^2 - 3x - 10 = 0

(x-5) (x+2) = 0

x - 5 = 0 and x + 2 = 0

x = 5 and x = -2

So in this case a= 1 and c = -10. -10 x 1 = -10. -5 x 2 is equal to -10 and -5 + 2 gets you -3, which is b.

I don't think I explained it very well but I hope that helps a little :)

4 0

3 years ago

What is the solution set of 2x(x - 1) = 3?

garik1379 [7]

First you must distribute the 2x to the numbers inside the parentheses

(2x * x) + (2x * -1) = 3

$2x^{2}$ - 2x = 3

To make this a quadratic equation you can solve bring the 3 over to the left side of the equation by subtracting it to both sides

$2x^{2}$ - 2x - 3 = 0

Use the quadratic equation to solve this (image of the quadratic equation is below)

Remember that quadratic functions are set up like so:

$ax^{2} +bx +c = 0$

That means that in this equation...

a = 2

b = -2

c = -3

^^^Plug these numbers into the quadratic equation and solve...

$\frac{2+/-\sqrt{(-2)^{2}-4(2)(-3)}}{2(2)}$

$\frac{2 +/-\sqrt{4+24}}{4}$

$\frac{2+/-\sqrt{28} }{4}$

$\frac{2+/-2\sqrt{7} }{4}$

$\frac{1+/-\sqrt{7} }{2}$

Keep in mind that +/- is ±

$\frac{1+\sqrt{7} }{2}$

$\frac{1-\sqrt{7} }{2}$

^^^Exact answers

Approximations:

1.823

-0.823

Hope this helped!

~Just a girl in love with Shawn Mendes

8 0

3 years ago

Compare the following two numbers. Which statement is true?

neonofarm [45]

Answer:

A. The "9" in the second number represents 10 times as much as the "9" in the first number.

Step-by-step explanation:

If you look at the "9" in the first number as 90 and multiply that by 10, you will get 900. In the second number, the "9" is in the 100's place.

3 0

3 years ago

The length of one leg of a right triangle is 16 ft, and the length of the hypotenuse is

OLga [1]

The length of other leg is 30 ft

Look at the attached picture

Hope it helps...

Good luck on your assignment

3 0

3 years ago

Read 2 more answers