20 Most Recent Texas Instruments TI-84 Plus Calculator - Page 8 Questions & Answers

TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

Press 1 2ND [EE] 9 9 EE is the second function of the , key, just above the 7 key.

Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

Use the (-) key just to right of the decimal point key.

Use the ^ key just above the divide key. For example, to raise 2 to the 3rd power, press 2 ^ 3 ENTER and see 8.

Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

Press 2 ^ 1 0 ENTER and see 1024

Press 1 SHIFT EE (-) 9 EE is the shifted function of the "," key, just about the "7" key. (-) is just below the "3" key.

-3, -1, 1, 3

See captured image below. You have to use (-) sign

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

Milligram is a unit of mass. Milliliter is a unit of volume. Comparing the two is like trying to compare pounds and gallons. One ml of water will weigh 1000 mg. One ml of gold will weigh nearly 20000 mg.

Gram is a unit of mass (or weight). Teaspoon is a unit of volume. One teaspoon of water will weigh about 4.9 grams. One teaspoon of gold will weigh over 90 grams.

There are one thousand milligrams (mg) in one gram. Thus 0.4mg / 1000 = 0.0004g
You can do the others the same way.

Use the (-) key just below the 3 key.

V = (pi)(r square)(h) V= Volume (the amount we need to calculate) pi = 3.14... r = radius of cylinder (remember this is half that of the circumference) h = height of cylinder To make it easier for you below are the figures for the Cylinder. Radius= 11.5 inches Height = 17 inches. Now use the formula above to calculate it. For the Jelly Bean its, Radius = 0.25 inches Height = 0.5 Use the same formula above for jelly bean as well. Once you have both figures, divide Volume of Jar by Volume of Jelly e.g. VolumeofJar/VolumeofJelly AND VOILA, you have the amount of jelly beans in a jar (Round the figure out) Cheers!

Press 2ND [TEST] 1. TEST is the shifted function of the MATH key.

Press the MODE button, press down-arrow to get to the second line, use left/right arrows to highlight the desired number of digits, press ENTER, then press 2ND QUIT.