Question about SoftMath Algebrator - Algebra Homework Solver (689076614429)

# Find the break even quantity c=13x+42000 and r=16x?

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hi ,there could be a issue with commutator on the motor but make sure the brushes are a good quantity .... and the right ones..

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### What is the break even point (quantity) if the buying price of a basket remains N1000 and the selling price is N5

Break-even point is that level of production at which a business unit makes no profit and no loss. The level of production and sales at which the income covers all variable and fixed costs of the business is termed the break-even point.

Divide total costs (Here 1000) by the selling price (5) to determine how many units must be sold to break even. Hence 1000/5=200.

If you only sell 199, you are losing money and have not achieved break even.

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### Variable calculator

x=-2

If you're asking how to do this on a particular calculator, please specify the make and mode. If this is homework, be sure to show your work.

Feb 08, 2014 | Office Equipment & Supplies

### X^2+13x+22=7

x^2+13x+15=0
Recall (x+a)^2=x^2+2ax+a^2
Write x^2+2*(13/2)x+15, and compare the terms in x. a=13/2
x^2+13x+15=x^2+2(13/2)x+(13/2)^2-(13/2)^2+15
The first three terms are the expansion of (x+13/2)^2
You expression is equivalent to
(x+13/2)^2-[(13/2)^2-15]=(x+13/2)^2-[SQRT(109)/2]^2
Use the identity for the difference of two squares a^2-b^2=(a-b)(a+b)
This gives
x^2+13x+15=(x+13/2)^2-[SQRT(109)/2]^2=
[x+13/2 -SQRT(109)/2][x+13/2+SQRT(109)/2]
The polynomial can be written as (x-a)(x-b) (Note a has nothing to do with the one used above to complete the square. You can use any name for the roots, x_1, x_2, anything.
The two roots are on the screen captures below.

PS. I prefer to manipulate exact expressions with radicals. If you do not like it use the decimal approximations.

Jan 18, 2014 | Texas Instruments TI-84 Plus Calculator

### How do i solve the equation x2-13x+36=0

Use the quadratic formula or completing the square.
Completing the square:
x^2 -13x=-36
x^2-2*(13/2) +(13/2)^2=-36+(13/2)^2
The left side can be factored as (x-13/2)^2.
The right side is (13^2-36*4)/4=(169-144)/4=25/4
Assembling the two sides
(x-13/2)^2=25/4
Taking the square roots x-13/2=+ or - 5/2
Case 1 : x-13/2=+ 5/2.
Solving for x you get the first root as x=(5+13)/2=18/2=9

Case 2 : x-13/2=-5/2.
Solving for x, you get the other root as x=(13-5)/2=8/2=4.
The roots are x1=9, and x2=4

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### Toshiba Equium A300D - 13X laptop black screen.

Hi. try accessing the Start-up BIOS features by pressing F2 or Delete key when you see the Toshiba logo. Check for the Tab that will give you the control for the brightness/contrast of the screen. If that doesn't do anything then most probably the backlight (LED or CFL) must have been busted. and needs replacement.

^_^

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### I have a LG GE20 DVD Rewriter Is a DVD+RW disc a format that is editable and suitable for this unit?

The LG G20 DVD Rewriter is an advanced external burner that supports 'editable' Rewritable DVD+RW disk.
As a generic comment, not all writable/rewritable media are made equal and problem with branded & unbranded disks are not uncommon, so stick to brands that work for you for your specific unit!
The following is the advertised support for your unit, hope it helps:
Reading Rate DVD-R/-RW/-ROM 16x/13x/16x/16xSL/12xDL max. DVD-RAM 2x, 3x-5x, 6x-12x DVD-Video (CSS) 4,8x max. (Single/Dual Layer) DVD+R/+RW 16x/13x max./ 12xDL max. CD-R/RW/ROM 48x/40x/48x max. CD-DA (DAE) 40x max. Burning Speed DVD-R 2x, 4x CLV, 8xZCLV, 16x PCAV, 20X CAV DVD-RW 1x, 2x, 4x, 6x CLV DVD-RAM 2x, 3x ZCLV, 3x - 5x PCAV, 12x PCAV DVD+R 2.4x, 4x, 8x, 12x, 16x PCAV, 20X CAV DVD+R Double Layer 2.4x, 4x, 10x, 12x ZCLV DVD-R Dual Layer 2x, 4x, 6x CLV, 10x, 12x ZCLV DVD+RW 2.4x, 4x, 6x, 8x ZCLV CD-R 4x, 8x CLV, 16x, 24x, 32x, 40x, 48x ZCLV CD-RW 4x, 8x, 10x CLV, 16x CLV, 24x, 32x ZCLV

Dec 28, 2009 | Computers & Internet

### Simplify

[3(x-5)-4(-3x+2)]-[4(6-x)]
[(3x-15)-(12x+8)]-(24-4x)
(-9x-23)-(24-4x)
-13x-(-1)

Sep 13, 2008 | Texas Instruments TI-84 Plus Calculator

### Truly MP3 13X only showing blue backlight

same here, you just have to keep messin' with (pluging it into computer, etc.). I know it sounds strange but that's how I deal w/mine. It eventually comes back to life.

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