Question about Texas Instruments TI-30XA Calculator

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How do i use the cal for cube problems

For f(x) = 3 cube 2x-1, find f(-13):

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You are asking how to enter (3)(cube of 2x)-1, or (3)(cube of (2x-1), with x = -13?

For first:

13
=/- (below 3 key)
X
2
=
2nd
x cubed (above 1 key)
X
3
-
1
=
Answer -52,729

For second:

13
=/- (below 3 key)
X
2
-
1
=
2nd
x cubed (above 1 key)
X
3
=
Answer -59,049

Posted on Jan 01, 2009

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1 Answer

6+3racical 2


If you mean 6 plus cube root of 2 then press
6 + 2 2nd [cube-root] =

The cube root is the shifted function of the 0 key.

Dec 03, 2012 | Texas Instruments TI-30XA Calculator

1 Answer

How do i use my calculator to solve this problem 40 exponent 1/3


I assume you want 40 raised to the one-third power?
Three simple ways.
Raise 40 to the one-third power: Press 4 0 y^x ( 1 / 3 ) =
or
Take the cube root of 40: Press 4 0 2nd cube-root = (the cube-root is the shifted function of the 0 key)
or
Take the third root of 40: Press 4 0 2nd xth-root 3 = (the xth-root is the shifted function of the y^x key, located just above the divide key)

Mar 14, 2012 | Texas Instruments TI-30XA Calculator

1 Answer

How do I determine the open space in a 12" cube


Determine the volume of the cube

Which is calculated by:
length x width x depth

then subtract the volume of the sphere's

Which is calculated by:
Number of spheres multiplied by (4/3) * pi * radius3

To figure out how many sphere's you can fit in the cube

Divide the width of the cube by the diameter of the sphere then cube that number
(try it with a larger diameter sphere for example 6" sphere and sketch it out, you will see why)

0.01" Sphere-Total Volume

12"/0.01"=1200

1200^3 = 1.728 E 9 = Number of sphere's in the cube

1.728 E 9 x (4/3) * pi * 0.0053=904.32 cubic inches

Volume of Cube = 1728

Remaining Volume = 1728-904.32 = 823.68

You should be able to figure out how to do the other one.

Jun 18, 2011 | Sharp Office Equipment & Supplies

1 Answer

Trying to find the surface area of a sphere given the volume: V = 4/3 X pi X r cube problem given vol. find the surface area v = 5000 5000(3/4 pi =r cube the book reads: 3 cube before and the square...


Almost exactly the way it's written in the book.

In the LineIO mode press
3 SHIFT [xth-root] 5 0 0 0 * 3 / ( 4 * SHIFT [pi] ) ) =

In the MathIO mode press
SHIFT [xth-root] 3 right-arrow 5 0 0 0 * 3 / ( 4 * SHIFT [pi]) =

xth-root is the shifted function of the key just below and right of the big round cursor pad.
* is the multiply key
/ is the divide key
pi is the shifted function of the x10^x key in the middle of the bottom row

BTW there's no "square root" in this problem. There's a "cube root" or "third root". Square root is the second root.

May 14, 2011 | Casio fx-300ES Calculator

1 Answer

If 1cm cubes are stacked on a base which is 1cm wide and 2 1/2 cm deep how high will the pile be


Without knowing how many cubes we can't tell how high the pile will be. We do know that two 1cm cubes can fit on the base, however, two 1cm cubes can be placed on the cubes that are on the base and the tower of cubes can be stacked to an indeterminable height.

Mar 23, 2011 | Office Equipment & Supplies

2 Answers

How do you calculate the cubed root of a number or 5th root of a number?


For cube roots, use the cube-root function in the MATH menu. For example, to calculate the cube root of 8, press MATH 4 8 =

For other roots (including cube root), use the xth-root function in the MATH menu. For example, to calculate the fifth root of 32, press 5 MATH 4 3 2 =

Mar 02, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

Hi, I am using my BA I Plus to do the following cal.: N = 6 I=7 PMT = -42000 FV = -700000 this is a problem about bond. Couple days ago, when I entered the above input, I get the same as the...


Check the number of payments per year. With one payment per year the present value is 666,634, while with twelve payments per year the present value is 922,926.

You probably changed it while working out another problem.

Oct 03, 2010 | Texas Instruments BA II PLUS Financial...

1 Answer

After i cube a problem, how do i change out of it?


After you calculate the cube of a number (is this what cube a problem mean?) you can press the A/C button to clear the screen or do something else. There is nothing to change out of, as it is not MODE.

Jan 31, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

When i am in the middle of a sale it comes up error. i clear it then it will work again . it does this on and off. swintec sw20


It sounds like you have a bad connection..either in your wall socket, or the electrical cord on your cal. is getting old or shorted where it connects to your cal. If it is not these connections, your may have dropped a staple or paper clip in your cal. turn cal off and shake machine to dislodge it. turn cal back on see what happens. if it starts to smoke, etc. etc, this was your problem and you need a Monroe cal. good luck

Oct 31, 2009 | Office Equipment & Supplies

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