Question about Office Equipment & Supplies

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Posted on Jan 02, 2017

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the area of your roof is equal to the base (B) times the hight (H) divided by 2.

A = ( B x H )/ 2 = 120

To get the Perimeter of your roof you need to sum the base plus the sides (S)

So P = B + 2 x S

if you have a slope degree of 30 then

B/2 = cos (30) x S

so P = B + 2 x B / 2 / cos(30)

P = B ( 1 + cos (30) )

we also know that

H = tg (30) x B/2

from this last one we can go back to the Area and get a value for B

120 = ( tg (30) x B / 2 x B) / 2

480 x SQRT(3) = B^2

B = SQRT(480/tg(30))

So:

P = SQRT(480/tg(30)) x ( 1 + cos (30))

tg (30) = 1 / SQRT(3) cos (30) = SQRT(3)/2

P = 2 SQRT(30 x (12 + 7 x SQRT(3) ) ) or aproximately 53.8m

A = ( B x H )/ 2 = 120

To get the Perimeter of your roof you need to sum the base plus the sides (S)

So P = B + 2 x S

if you have a slope degree of 30 then

B/2 = cos (30) x S

so P = B + 2 x B / 2 / cos(30)

P = B ( 1 + cos (30) )

we also know that

H = tg (30) x B/2

from this last one we can go back to the Area and get a value for B

120 = ( tg (30) x B / 2 x B) / 2

480 x SQRT(3) = B^2

B = SQRT(480/tg(30))

So:

P = SQRT(480/tg(30)) x ( 1 + cos (30))

tg (30) = 1 / SQRT(3) cos (30) = SQRT(3)/2

P = 2 SQRT(30 x (12 + 7 x SQRT(3) ) ) or aproximately 53.8m

Mar 03, 2011 | Texas Instruments TI-83 Plus Calculator

The FX-115ES is somewhat different to other calculators you might know. The sequence of keys is more like writing up a calculation in a textbook, whereas for "normal" calculators operations are reversed in some places.

For example, with most calculators you would type 30 [sin] to calculate the sine function of 30 degrees, with the 115ES its [sin] 30 [=].

The 115ES has all the standard trigonometric functions:

For example, with most calculators you would type 30 [sin] to calculate the sine function of 30 degrees, with the 115ES its [sin] 30 [=].

The 115ES has all the standard trigonometric functions:

- Standard functions (sin, cos, tan), type the [sin], [cos] or [tan] key followed by the argument.
- Inverse trigonometric (sin?¹, cos?¹, tan?¹), type [SHIFT][sin], [SHIFT][cos] or [SHIFT][tan] followed by the argument.
- Hyperbolic functions (sinh, cosh, tanh), type [HYP][sin], [HYP][cos], or [HYP][tan] followed by the argument.
- and finally inverse hyperbolic (sinh?¹, cosh?¹, tanh?¹), its [SHIFT][HYP][sin], [SHIFT][HYP][cos], or [SHIFT][HYP][tan] followed by the argument.

Jan 06, 2011 | Casio FX-115ES Scientific Calculator

Put the machine on and press **1087, 1087** until the display shows** U000**. Press **163 **and the press **start .**display shows **CLE, **press** start** again**. **The machine will initialize and become ready for copying

Nov 15, 2010 | Kyocera Copystar CS-1620 Black and White...

You must first set angle unit to degree.

Press the [MODE] key a certain number of times until you get to a screen that displays Deg Rad Grad. Press number key 1 to select degree.

Once this is done you can calculate trigonometric functions. To enter angles in DMS you have a key marked with degree symbol, a quotation mark, and a double quotation mark. In what follows that key is represented as DMS.

To calculate cos(30 deg 24')

[COS] 30 [DMS] 24[DMS] [=]

If you get an error message you will have to enter the seconds even if the value is 0

[COS] 30 [DMS] 24[DMS] 0 [DMS] [=]

Press the [MODE] key a certain number of times until you get to a screen that displays Deg Rad Grad. Press number key 1 to select degree.

Once this is done you can calculate trigonometric functions. To enter angles in DMS you have a key marked with degree symbol, a quotation mark, and a double quotation mark. In what follows that key is represented as DMS.

To calculate cos(30 deg 24')

[COS] 30 [DMS] 24[DMS] [=]

If you get an error message you will have to enter the seconds even if the value is 0

[COS] 30 [DMS] 24[DMS] 0 [DMS] [=]

Sep 11, 2010 | Casio FX-300MS Calculator

Is this a joke or what?

cos(30 deg)-cos(40 deg)=0.0999809607

sin(30 deg)+sin(40 deg)=1.14278761

And even if your functions are hyperbolic functions

the first expression cannot give 0 otherwise 30 would be equal to 40, and no reasonable person would expect that.

sinh(30)+sinh(40)=1.176979767 x 10^17

cos(30 deg)-cos(40 deg)=0.0999809607

sin(30 deg)+sin(40 deg)=1.14278761

And even if your functions are hyperbolic functions

the first expression cannot give 0 otherwise 30 would be equal to 40, and no reasonable person would expect that.

sinh(30)+sinh(40)=1.176979767 x 10^17

Aug 02, 2010 | Office Equipment & Supplies

You would press on the SIN key, "sin(" should come on the display, then enter the value, for example 3.5 or -1 so that the display shows

sin(3,5) or sin(-1) for example.

remember to close the sin with the ) on the end.

**sin(-1) = -0.841470985**

sin(3,5) or sin(-1) for example.

remember to close the sin with the ) on the end.

Feb 16, 2010 | Texas Instruments TI-30XA Calculator

Hello,

1.Set the correct angle unit required by your problem: degrees, radians, or grads. [SHIFT][MODE] [3:deg] or [4:Rad]

2. Press the key for the function COS, SIN, or TAN

[COS] displays Cos(

3.Enter the angle 12 deg Screen shows cos(12

Close the right parenthesis ) Screen shows cos(12)

4.Press [=] Screen displays 0.9781

If you want the inverse trigonometric functions you access them with arccos [SHIFT] [COS] (cos^-1)

arcsin [SHIFT][SIN] (sin^-1)

actan [SHIFT][TAN] (tan^-1)

You have to know the**principal domain** for the inverse trigonometric functions (see any book on trigonometry) to understand the results.

Hope it helps.

1.Set the correct angle unit required by your problem: degrees, radians, or grads. [SHIFT][MODE] [3:deg] or [4:Rad]

2. Press the key for the function COS, SIN, or TAN

[COS] displays Cos(

3.Enter the angle 12 deg Screen shows cos(12

Close the right parenthesis ) Screen shows cos(12)

4.Press [=] Screen displays 0.9781

If you want the inverse trigonometric functions you access them with arccos [SHIFT] [COS] (cos^-1)

arcsin [SHIFT][SIN] (sin^-1)

actan [SHIFT][TAN] (tan^-1)

You have to know the

Hope it helps.

Nov 05, 2009 | Casio Office Equipment & Supplies

I had this happen on our machine after about 5 years of use. I just recalibrated it and it appears to be working fine now. See the manual for information on the steps needed to take in order to do this.

Jul 11, 2009 | Bowflex Treadclimber

If the take up reel is not working properly the slack in tape drive will cause poor recordings and shut downs.

Sep 13, 2017 | Insignia IS-DVD1001 DVD Recorder/VCR

Make sure you are set to degrees, radians, or grads, whichever angular measurement you are using.

The DRG key toggles through the three modes of input, and the display shows which you are in.

30 SIN will give the correct 0.5 answer if you are set to use DEG.

Set to RAD and since 30 degrees = (30)(pi)/180= 0.52234 rad, set to RAD and 0.52234 SIN also gives you the correct 0.5 result

The DRG key toggles through the three modes of input, and the display shows which you are in.

30 SIN will give the correct 0.5 answer if you are set to use DEG.

Set to RAD and since 30 degrees = (30)(pi)/180= 0.52234 rad, set to RAD and 0.52234 SIN also gives you the correct 0.5 result

May 06, 2008 | Texas Instruments TI-30XA Calculator

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