Jul 19, 2022 · The TI-84 Plus CE stands out as a premium graphing calculator that you can rely on, boasting over a dozen built-in applications, including correct math notation, inequality graphing, and data collection. The graphing calculator is exceptionally thin and surprisingly lightweight and comes with a high resolution, full-color backlit display. The TI‑84 Plus CE allows for undefined values on a graph. OVERFLOW. You attempted to enter, or you have calculated, a number that is beyond the range of the graphing calculator. The TI‑84 Plus CE allows for undefined values on a graph. RESERVED. You attempted to use a system variable inappropriately. SINGULAR MATRIXinstructions, examples, and functions in this guidebook also work for the TI-84 Plus. The two graphing calculators differ only in available RAM memory, interchangeable faceplates, and Flash application ROM memory. Sometimes, as in Chapter 19, the full name TI-84 Plus Silver Edition is used to distinguish it from the TI-84 Plus.Calculator Rules. Bring your own calculator. You can’t share one. You can only use your calculator on the portion of the test labeled Math Test – Calculator. You may not use a calculator while working on the Math Test – No Calculator portions, or during the Reading and Writing and Language sections. You must put the calculator away during ...TI-84 Plus by Texas Instruments4,500 + results for ti 84 calculator Save this search Shipping to: 23917 Shop on eBay Brand New $20.00 or Best Offer Sponsored Texas Instruments TI-84 plus Graphing Calculator Case - Black NEW Free Shipping Brand New $29.95 zamas-2957 (39) 95.3% Buy It Now Free shipping 6+ watchers Sponsored Dec 23, 2011 · Finding the Area Under a Standard Normal Curve Using the TI-84Visit my channel for my Probability and Statistics Videos. TI-84 Plus by Texas Instruments Get the best deals for ti-84 plus at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!Tons of TI-82s, around $10 a piece. A couple TI-84 Plus C Silver Colors for $45 a piece (I really liked these back in grade school, so definitively near the top of the list :P) A TI-Nspire with a TI-84 pad for $25. A TI-89 Titanium for $30 (negotiable). Casio's lineup is a lot more confusing to me, so I haven't looked at any of those. Apr 14, 2020 · To find the Z critical value on a TI-84 calculator, we can use the following function: invNorm (probability, μ, σ) where: probability: the significance level. μ: population mean. σ: population standard deviation. You can access this function on a TI-84 calculator by pressing 2nd and then pressing vars. This will take you to a DISTR screen ... Texas Instruments Used TI-83 Plus Graphing Calculator. Used calculator in good condition. Includes calculator, batteries, and slide case only. Very Good condition units have very few cosmetic issues. Acceptable condition units will have more and larger cosmetic imperfections and marks.Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*10 12 will display as 2.53 E 12. You can enter an expression in scientific notation by pressing [2nd][,] to type an E, but entering an expression in scientific notation doesn’t guarantee that your answer will remain in scientific notation.The viewing rectangle on the TI-83 is 94 pixels by 62 pixels. (A pixel is a picture element.) It is useful when graphing to have a “friendly window” in order to avoid distortion in the graph and to avoid obtaining non-integer values when using the trace function of the TI-83. In fact, q ® (ZoomStat) usually gives a "friendly window".TI-84 Plus by Texas Instruments A dead TI-83+ calculator can be caused by poor electrical contact between the batteries and the main board. The batteries are located in the back cover. Th...Save on Calculators. Brand New SEALED 2022 MODEL! Texas Instruments Ti-84 Plus CE Graphing Calculator. $98.97. Trending at $110.00. Texas Instruments TI-84 Plus Graphing Calculator 10-Digit LCD. TI-84 Plus Graphing Calculator 10-Digit LCD. New. An essential educational tool it is conveniently preloaded with software including Cabri Jr. interactive geometry software to give users the edge they need to succeed in the classroom.to insert the mean ( command. Press [2nd] [ (] and enter a list of numbers separated by commas, or press [2nd] [1] to insert list L 1. See the second screen shown here. You can use the 1-Var Stats Wizard. to calculate the min, max, Q1, Q3, median, mean, and standard deviation of a data list. If you are taking a statistics course, check out the ...Texas Instruments TI-84 Plus Graphing Calculator TI84+ (3476) $35.99 to $59.99 Trending at $45.99 $4.97 shipping 140 sold TI-84 Plus Graphing Calculator + Batteries, BUDGET BARGAIN, Texas Instruments (1) $39.00 Trending at $48.00 Free shipping or Best Offer TI-83 Graphic Calculator plus Sliding Cover Texas Instruments Graphing TI83 83 (2883) Speed up your Search . Find used Ti 84 Calculator for sale on eBay, Craigslist, Letgo, OfferUp, Amazon and others. Compare 30 million ads · Find Ti 84 Calculator faster !| https://www.used.forsale Is the TI-85 the same as the TI-84? A yes, Ti-85 is specifically designed for the basic level calculations of engineering and calculus. The graphing functions provided by this device are limited and obsolete. However, Ti-84 is equipped with advanced graphing technology.Nov 4, 2021. Do people still use TI-83?Step 2: Perform linear regression. Next, we will perform linear regression. Press Stat and then scroll over to CALC. Then scroll down to 8: Linreg (a+bx) and press Enter. For Xlist and Ylist, make sure L1 and L2 are selected since these are the columns we used to input our data. Leave FreqList blank.Finding the Area Under a Standard Normal Curve Using the TI-84Visit my channel for my Probability and Statistics Videos.Here is the list of approved calculators for the SAT ® if you want to make certain your calculator is permitted: TI-73 Explorer™ graphing calculator. TI-80 graphing calculator. TI-81 graphing calculator. TI-82 graphing calculator. TI-83 graphing calculator and TI-83 Plus graphing calculator. TI-83 Plus Silver Edition graphing calculator.How do I access the TI-84 Online? The TI-84 Online Calculator is the free version of the coveted TI-84 Calculator. Easily solve Algebra Problems Online. Do Calculus, Statistics and Trig too. Compute Mean, Median and Mode. Even Matrix Multiplication and Determinants of 3x3 Matrices can be found. Everything at your finger tips. Click below to start. 4. Use MathPrint Templates. When questions involve fractions, absolute values, or radicals, use the MathPrint templates built into the TI-84 Plus CE. Access the fraction bar by pressing the alpha key then the X,T,Θ,n key on CE models and alpha then y= on other TI-84 Plus models. You can also easily convert between fractions and decimals.The TI-84 Plus CE stands out as a premium graphing calculator that you can rely on, boasting over a dozen built-in applications, including correct math notation, inequality graphing, and data collection. The graphing calculator is exceptionally thin and surprisingly lightweight and comes with a high resolution, full-color backlit display.Apr 28, 2022 · As far as where you are allowed to use the calculator, almost every test or class that allows a TI-85 will allow a TI-84 as well. The TI-84 is a much better investment. (If the TI-84 is too expensive, look into getting a TI-83. Jan 21, 2022 · The TI-84 Plus C graphing calculator is one of the most popular calculators in the world. Find out the important keystrokes you need to know to use the TI-84 Plus, and learn the math functions and constants that the TI-84 Plus C makes available to you. ti 84 calculator used for sale | eBay All Listings Auction Buy It Now Condition 3,600 + results for ti 84 calculator used Save this search Shipping to: 23917 Shop on eBay Brand New $20.00 or Best Offer Sponsored Texas Instruments TI-84 Plus Graphing Calculator Black With Cover Pre-Owned 3475 product ratings $93.00 jakesmerchandise (8,298) 100% May 12, 2017 · The calculator is woefully under-equipped when compared with similarly priced electronics. For example, a TI-84 Plus and Kindle Paperwhite both sell for $99.99 on Amazon.com. The Kindle's screen ... Mar 7, 2015 · This is the first in a series of videos teaching how to use a TI-84 Graphing calculator. This introductory video will cover many topics including simplifying... A TI-84 Calculator, sometimes called a TI-84 Plus or a TI-84 Plus Graphing Calculator, is the gold standard right now for math, science, and statistics courses in high school (and beyond). In a nutshell, the TI 84 is a powerful calculator for students to create more complex graphs and solve higher math equations.The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004. There is no original TI-84, only the TI-84 Plus, the TI-84 Plus Silver Edition models, and the TI-84 Plus CE. The TI-84 Plus is an enhanced version of the TI-83 Plus. The key-by-key correspondence is relatively the same, but the TI-84 features ...Getting started with the TI-84CE from un-boxing to performing simple calculations, see how to change your settings, store variables and use some of the built...to insert the mean ( command. Press [2nd] [ (] and enter a list of numbers separated by commas, or press [2nd] [1] to insert list L 1. See the second screen shown here. You can use the 1-Var Stats Wizard. to calculate the min, max, Q1, Q3, median, mean, and standard deviation of a data list. If you are taking a statistics course, check out the ...Tons of TI-82s, around $10 a piece. A couple TI-84 Plus C Silver Colors for $45 a piece (I really liked these back in grade school, so definitively near the top of the list :P) A TI-Nspire with a TI-84 pad for $25. A TI-89 Titanium for $30 (negotiable). Casio's lineup is a lot more confusing to me, so I haven't looked at any of those.The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004. There is no original TI-84, only the TI-84 Plus, the TI-84 Plus Silver Edition models, and the TI-84 Plus CE. The TI-84 Plus is an enhanced version of the TI-83 Plus. The key-by-key correspondence is relatively the same, but the TI-84 features ... Apr 14, 2020 · To find the Z critical value on a TI-84 calculator, we can use the following function: invNorm (probability, μ, σ) where: probability: the significance level. μ: population mean. σ: population standard deviation. You can access this function on a TI-84 calculator by pressing 2nd and then pressing vars. This will take you to a DISTR screen ... TI-84 Plus CE Color Graphing Calculator, Red. 2,115. 1K+ bought in past month. $13968. List: $149.00. FREE delivery Thu, Sep 7. Only 7 left in stock - order soon. More Buying Choices. $112.00 (101 used & new offers) Oct 6, 2021 · Shells got more elaborate over time, culminating in Doors CS by Christopher Mitchell (KermMartian), which had icons for assembly programs, a cursor-based UI, and a bunch of routines for programs to use. TI-84+ USB mass storage driver. The 84+ had a really wacky USB port: it was an On-the-Go port, very obscure when it was released. Oct 29, 2020 · The TI-84 Plus graphing calculator is allowed during the entire portion of the math section of the ACT.*. The questions get more difficult as the problem number increases, so you should aim to do questions #1-20 in 30 seconds each, #20-40 in 60 seconds each, and #40- 60 in 90 seconds each, on average. You can use your TI graphing calculator to ... Don't just assume that any ole scientific calculator will do. If the instructors says to get a TI-83/84 they mean it. Other scientific calculators don't have the same functionality and it can really put the student at a disadvantage. You can use EITHER the TI-83 or TI-84, but it needs to be one of those, and the TI-84 is worth the investment.Oct 29, 2020 · In this video, I give a introductory tutorial on the Texas Instruments TI-84 Plus calculator, one of the most commonly used graphing calculators today.Topics... Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*10 12 will display as 2.53 E 12. You can enter an expression in scientific notation by pressing [2nd][,] to type an E, but entering an expression in scientific notation doesn’t guarantee that your answer will remain in scientific notation.instructions, examples, and functions in this guidebook also work for the TI-84 Plus. The two graphing calculators differ only in available RAM memory, interchangeable faceplates, and Flash application ROM memory. Sometimes, as in Chapter 19, the full name TI-84 Plus Silver Edition is used to distinguish it from the TI-84 Plus.In this video, I give a introductory tutorial on the Texas Instruments TI-84 Plus calculator, one of the most commonly used graphing calculators today.Topics...You can use our Texas Instruments calculator buyback program to sell older models like the TI-83 Plus, TI-84, and TI-89 regular and silver editions. To get started, select the TI model above. You can then select the condition to receive your instant trade in price quote. If you are satisfied with the value, complete the checkout process.The TI-83 Plus has a pragmatic key layout and an easy-to-use graphing interface, with a simple programming language for creating conversion programs. The TI-83 Plus stores and analyzes up to 10 matrices combined with data storage in lists containing up to 999 elements per list. You can also solve equations interactively for different variables.Scroll to the Solve function and press [ENTER]. First, set the equation to be solved equal to zero. To solve X/2 + 5 = – 2X, add 2X to both sides. The syntax of the Solve function is: Solve (expression, variable, guess). The expression is the part of an equation that has been set equal to zero. See the first screen.Save on Calculators. Brand New SEALED 2022 MODEL! Texas Instruments Ti-84 Plus CE Graphing Calculator. $98.97. Trending at $110.00.instructions, examples, and functions in this guidebook also work for the TI-84 Plus. The two graphing calculators differ only in available RAM memory, interchangeable faceplates, and Flash application ROM memory. Sometimes, as in Chapter 19, the full name TI-84 Plus Silver Edition is used to distinguish it from the TI-84 Plus. Best ti 84 calculator online. We have the most sophisticated and comprehensive TI 84 type graphing calculator online. Includes all the functions and options you might need. Easy to use and 100% Free! We also have several other calculators. Please pick the appropriate calculator from below to begin. You can use your keyboard's Numpad to enter ... Mar 7, 2015 · This is the first in a series of videos teaching how to use a TI-84 Graphing calculator. This introductory video will cover many topics including simplifying... Here's a website where you can run an emulator directly. You do need to get hold of ti 84 rom though. I was able to get one running pretty quickly. There's also youtube instructions on how to run the emulator on a home computer and then remote into it from the chromebook. Wolfram alpha would be the easiest at replicating your teachers instructions.Oct 6, 2021 · Shells got more elaborate over time, culminating in Doors CS by Christopher Mitchell (KermMartian), which had icons for assembly programs, a cursor-based UI, and a bunch of routines for programs to use. TI-84+ USB mass storage driver. The 84+ had a really wacky USB port: it was an On-the-Go port, very obscure when it was released. Mar 7, 2015 · This is the first in a series of videos teaching how to use a TI-84 Graphing calculator. This introductory video will cover many topics including simplifying... Getting Started with the TI-84 Plus CE Graphing Calculator (English) View: View: 5.7 1,335 CE TI-Basic Programming Guide for the TI CE Family of Graphing Calculators (English) View: View: 5.7 871 TI-84 Plus CE Reference Guide (English) View: ViewGetting Started with the TI-84 Plus CE Graphing Calculator (English) View: View: 5.7 1,335 CE TI-Basic Programming Guide for the TI CE Family of Graphing Calculators (English) View: View: 5.7 871 TI-84 Plus CE Reference Guide (English) View: ViewGetting started with the TI-84CE from un-boxing to performing simple calculations, see how to change your settings, store variables and use some of the built...September 22, 2019. Texas Instrument’s best-selling graphing calculator, the TI-84, is a woefully outdated piece of technology. Since its debut in 2004, its specs and components have remained virtually unchanged. With 24 kilobytes of RAM, a 96×64 pixel screen, and a power system that still relies on 4 AAA batteries, it has been usurped by ...TI-84 Plus by Texas Instruments Calculator Rules. Bring your own calculator. You can’t share one. You can only use your calculator on the portion of the test labeled Math Test – Calculator. You may not use a calculator while working on the Math Test – No Calculator portions, or during the Reading and Writing and Language sections. You must put the calculator away during ...It retains the same functionality as its predecessor, the TI-83+, but offers more memory, and several updated features. Keypress sequences that work on one usually work on the other. The keys on the TI-84+ are colour-coded by function. The white keys include the number keys, decimal point, and negative sign. When entering negative values, use ...Scroll to the Solve function and press [ENTER]. First, set the equation to be solved equal to zero. To solve X/2 + 5 = – 2X, add 2X to both sides. The syntax of the Solve function is: Solve (expression, variable, guess). The expression is the part of an equation that has been set equal to zero. See the first screen.Apr 22, 2021 · To answer this, we can use the geometpdf () function. Press 2nd and then press VARS. Scroll down to geometpdf () and press ENTER. Then type in the following values and press ENTER. The probability that the fourth person the researcher talks to is the first person to support the law is 0.1024. Shells got more elaborate over time, culminating in Doors CS by Christopher Mitchell (KermMartian), which had icons for assembly programs, a cursor-based UI, and a bunch of routines for programs to use. TI-84+ USB mass storage driver. The 84+ had a really wacky USB port: it was an On-the-Go port, very obscure when it was released.Description. Used TI-84 Plus – The Texas Instruments TI-84 Plus graphing calculator can be used for many function. The TI-84 Plus calculator is easy to use and is perfect for math and science classes including algebra, geometry, trigonometry, pre-calculus, calculus, physics, chemistry, and biology. This model is enhanced with Flash memory for ...Texas Instruments TI-84 Plus Graphing Calculator TI84+ (3476) $35.99 to $59.99 Trending at $45.99 $4.97 shipping 140 sold TI-84 Plus Graphing Calculator + Batteries, BUDGET BARGAIN, Texas Instruments (1) $39.00 Trending at $48.00 Free shipping or Best Offer TI-83 Graphic Calculator plus Sliding Cover Texas Instruments Graphing TI83 83 (2883) Here is the list of approved calculators for the SAT ® if you want to make certain your calculator is permitted: TI-73 Explorer™ graphing calculator. TI-80 graphing calculator. TI-81 graphing calculator. TI-82 graphing calculator. TI-83 graphing calculator and TI-83 Plus graphing calculator. TI-83 Plus Silver Edition graphing calculator. It compares the TI-84, TI-89, TI-Nspire CX CAS. While all TI Graphing Calculators can be used on the AP and SAT Tests, the TI-84 CE has a colored display, is super slim and light, has long lasting power, available in different colors, has MathPrint functionality and is available at Amazon for $100. The Ti-84 CE Plus checks all the boxes. In this tutorial, I will be assuming you have never used a TI graphing calculator before. We will cover what you would need in a basic algebra or precalculus class. Detailed answers/keystrokes for all examples are at the end of each section. If you are following this tutorial on a TI-84 calculator you may have Mathprint installed. Turn MathrprintShop Texas Instruments TI-84 Plus Graphing Calculator Blue at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up. Price Match Guarantee. Here is the list of approved calculators for the SAT ® if you want to make certain your calculator is permitted: TI-73 Explorer™ graphing calculator. TI-80 graphing calculator. TI-81 graphing calculator. TI-82 graphing calculator. TI-83 graphing calculator and TI-83 Plus graphing calculator. TI-83 Plus Silver Edition graphing calculator. The TI-84 Plus CE stands out as a premium graphing calculator that you can rely on, boasting over a dozen built-in applications, including correct math notation, inequality graphing, and data collection. The graphing calculator is exceptionally thin and surprisingly lightweight and comes with a high resolution, full-color backlit display.Auction Buy It Now 3,100 + results for ti-84 graphing calculator used Save this search Shipping to: 98837 Shop on eBay Brand New $20.00 or Best Offer Sponsored New Listing Texas Instruments TI-84 Plus CE Graphing Calculator Black (NO SLIDING COVER) Pre-Owned 3476 product ratings $64.99 Top Rated Plus Buy It Now jn_distributions (8,140) 99.1%Get the best deals for ti 84 calculator used at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!Get the best deals for ti-84 plus at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!Two free links to the TI-84 Graphing Calculator and Desmos Calculator. As schools transition to remote learning, Texas Instruments (the company that makes the TI-84 Graphing Calculators used in class) is pleased to offer all students and teachers free, six-month software licenses for the TI-SmartView™ CE emulator software for the TI‑84 Plus ...Two free links to the TI-84 Graphing Calculator and Desmos Calculator. As schools transition to remote learning, Texas Instruments (the company that makes the TI-84 Graphing Calculators used in class) is pleased to offer all students and teachers free, six-month software licenses for the TI-SmartView™ CE emulator software for the TI‑84 Plus ...
Products. Texas Instruments offers you a wide variety of learning tools for mathematics and science. Further calculators especially for business or home use, as well as accessories make our portfolio perfect. To have a look at our product range and visit our Germany website (German language) or France website (French language).. Shree
Calculator Rules. Bring your own calculator. You can’t share one. You can only use your calculator on the portion of the test labeled Math Test – Calculator. You may not use a calculator while working on the Math Test – No Calculator portions, or during the Reading and Writing and Language sections. You must put the calculator away during ...You can use our Texas Instruments calculator buyback program to sell older models like the TI-83 Plus, TI-84, and TI-89 regular and silver editions. To get started, select the TI model above. You can then select the condition to receive your instant trade in price quote. If you are satisfied with the value, complete the checkout process.Texas Instruments graphing calculator is ideal for students of all ages. The Texas Instruments TI-84 Plus Graphing calculator 10-Digit LCD has eight display lines, includes a USB computer cable and is fully compatible with TI-83 Plus. More than a dozen preloaded apps. Ideal for middle school through college.Contact a U.S. dealer Contact a Canadian dealer. Visit the TI online store to purchase products, accessories and replacement parts quickly and easily. Note: Not all retailers carry every TI product at their respective retail outlets or online stores. Category.Buy and sell used ti-84 calculators with local pick-up or shipped across the country Log in to get the full Facebook Marketplace experience. Log In Learn more $40 TI -84 Plus Silver Edition Graphing Calculator Springdale, AR $50 Texas Instruments Ti-84 Plus CE Color Graphing Calculators Chetopa, KS $25 brand new graphing calculator Winfield, KS $60 Tons of TI-82s, around $10 a piece. A couple TI-84 Plus C Silver Colors for $45 a piece (I really liked these back in grade school, so definitively near the top of the list :P) A TI-Nspire with a TI-84 pad for $25. A TI-89 Titanium for $30 (negotiable). Casio's lineup is a lot more confusing to me, so I haven't looked at any of those.Mar 7, 2015 · This is the first in a series of videos teaching how to use a TI-84 Graphing calculator. This introductory video will cover many topics including simplifying... Auction Buy It Now 3,100 + results for ti-84 graphing calculator used Save this search Shipping to: 98837 Shop on eBay Brand New $20.00 or Best Offer Sponsored New Listing Texas Instruments TI-84 Plus CE Graphing Calculator Black (NO SLIDING COVER) Pre-Owned 3476 product ratings $64.99 Top Rated Plus Buy It Now jn_distributions (8,140) 99.1% Aug 22, 2003 · The TI-83 Plus has a pragmatic key layout and an easy-to-use graphing interface, with a simple programming language for creating conversion programs. The TI-83 Plus stores and analyzes up to 10 matrices combined with data storage in lists containing up to 999 elements per list. You can also solve equations interactively for different variables. Scientific notation on a TI-84 Plus calculator looks a little different than what you’re used to seeing in class. For example, 2.53*10 12 will display as 2.53 E 12. You can enter an expression in scientific notation by pressing [2nd][,] to type an E, but entering an expression in scientific notation doesn’t guarantee that your answer will remain in scientific notation.The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004. There is no original TI-84, only the TI-84 Plus, the TI-84 Plus Silver Edition models, and the TI-84 Plus CE. The TI-84 Plus is an enhanced version of the TI-83 Plus. The key-by-key correspondence is relatively the same, but the TI-84 features ... Step 2: Fill in the necessary information. The calculator will ask for the following information: x: The number of successes. We will type 12 and press ENTER. n: The number of trials. We will type 19 and press ENTER. C-level:The confidence level We will type 0.95 and press ENTER. Lastly, highlight Calculate and press ENTER.It retains the same functionality as its predecessor, the TI-83+, but offers more memory, and several updated features. Keypress sequences that work on one usually work on the other. The keys on the TI-84+ are colour-coded by function. The white keys include the number keys, decimal point, and negative sign. When entering negative values, use ...BOVKE Hard Graphing Calculator Case Compatible with Texas Instruments TI-84 Plus CE/TI-84 Plus/TI-83 Plus CE/Casio fx-9750GII, Extra Zipped Pocket for USB Cables, Manual, Pencil, Ruler, Black $17.99 $ 17 . 99Apr 2, 2021 · Not so much. Using the recently improved Transformation app on the TI-84 Plus CE provides an illustration of the movement that changing the value of b has on the graph. Here are the steps to graph the function using the Transformation app: Press Œ} and choose the Transfrm to start the app running. Press o and enter the function in the problem ... Oct 29, 2020 · The TI-84 Plus graphing calculator is allowed during the entire portion of the math section of the ACT.*. The questions get more difficult as the problem number increases, so you should aim to do questions #1-20 in 30 seconds each, #20-40 in 60 seconds each, and #40- 60 in 90 seconds each, on average. You can use your TI graphing calculator to ... .