So first we need to know the order of operations
P - Parenthesis
E - Exponents
M - Multiplication
D - Division
A - Addition
S - Subtraction
Then the special cases:
(I have attached a picture below)
Lets get into action!
(5a - 2)(5a + 2) - 3( 1 - a ) - 3a
25a² - 4 - 3 + 3a - 3a
25a² - 7
25a² - 7 is the answer
The absolute temperature is 47 deg F greater inside than outside.
Answer: I think the answer is C.
Step-by-step explanation:
Answer:
A function is a relation that for each input, there is only one output.
Here are mappings of functions. The domain is the input or the x-value, and the range is the output, or the y-value.
Each x-value is related to only one y-value.
Athough the inputs equal to -1 and 1 have the same output, this relation is still a function because each input has just one output.
This mapping is not a function. The input for -2 has more than one output.
I hope that helps. I don't know if it is right or wrong, but good luck :)
Answer:
Ok, this is quite a bit more work than I am used to but I will try!
Step-by-step explanation:
Ok, seeing we have no hidden value for <em>x </em>I presume that we are using it as a coordinate plane listing location. Now that we have that settled, that would mean for the first bit on "A" is y= -4x is starting at x=0 on the number line and we are moving it back 4 spaces. Next bit for "A" is y=2(-x+1) seeing that it is right beside it means it is multiplication and we will be using PEMDAS for this one so we can get the best results. We will start with taking -x which automatically makes it -1x because there is no value infront of it and adding 1 because of +1, you can't have -0 you know! Meaning this value is y=0 because anything times zero is, say it with me! ZEEERROOOO! Now for part B, we moved back to "x" but for both parts... hmm.... well, let's start! -4x=2(-x+1), practically our last question but with multiple "x's". Using same logic, answer is -4x=0, meaning the value of "x" is 0. Turns out last questions "y" variable was an actual variable! Not a piece on the coordinate plane, silly me! Next answer is 0 and after that -4x=2(-x+1) we got the same logic as our last question, almost exact actually! There fore -4x=0! Hope this helped and have a good day! :D
