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# Tutor profile: Chrissy D.

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Chrissy D.
Loves to learn and help others
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## Questions

### Subject:Microsoft Excel

TutorMe
Question:

How do you fix when Excel changes a date into a series of numbers?

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Chrissy D.

It is common for Excel to change a date into a series of numbers. This can be frustrating when you want useable data but thankfully it is an easy fix. Imagine your date was located in A2 on your spreadsheet. You were hoping for a date but instead you find 43689. You would use the formula =TEXT(A2, "mm/dd/yyyy") to convert this information. A2 refers to where the date information is located and "mm/dd/yyyy" refers to how you want the date to appear when it is formatted. There are many options to how you want it formatted and it will depend on what you are trying to do with the end result. You could also choose "m/d/yyyy" or "m/d/yy" or "mm/dd/yy". These options would let change the number 43689 into either 08/12/2019, 8/12/2019, 8/12/19, or 08/12/19 depending on which format you choose.

### Subject:American Sign Language

TutorMe
Question:

Why are facial expressions so important to use while you sign?

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Chrissy D.

### Subject:Pre-Algebra

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Question:

How does the foil method work?

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Chrissy D.

The FOIL method is used to remember how to multiple binomials. An example would be: (x-2)(x+3). FOIL stands for first, outside, inside, last. First means multiplying the first terms in each set. In this case it would be (x)(x) which would give you x^2. Outside means multiplying the outer term in each set. Here that would be (x)(3) and the end result would be 3x. Inside is the inner term from each set, (-2)(x) which equals -2x. And then finally you do the last term in each set (-2)(3) and that equals -6. This means you end up with x^2+3x-2x-6. When you simplify by adding like terms it would be x^2+x-6. Another way to think about this is to think of socializing at a party. If you imagine a party in which you have two separate rooms and the goal is to have everyone meet. In room one you have Susan and Bob and in room two you have Hannah and Larry. You could write it as (Susan + Bob)(Hannah + Larry). Since Susan and Bob are already in the same room we can assume that they have met. You need Susan to then meet Hannah and Larry. When Susan meets Hannah that would be equivalent to the first step in FOIL. When Susan meets Larry then that would be the outside step since Susan and Larry are on the outside of their rooms. Since Susan has now met everyone we need to help Bob meet people as well. He also needs to meet Hannah and Larry. When Bob meets Hannah that qualifies as the inside step as they are both on the inside of their rooms. When Bob and Larry meet this is the last step in foil because they are the last two people to be introduced. This is an easy way to think about FOIL. As long as all of your numbers "meet" each other then you have done it correctly.

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