Answer:
1. 2*(3)^x This is because he starts off with two friends (so it's times 2) and each person shares it with 3 people (the 3) each day (x is time in days)
2. The same thing but different numbers, this time it's 10 people at first but only sharing to 2 people
10*(2)^x
3. Can't help you on this one, just use a graphing software or something or whatever they tell you to use
The first three points are given to you for Ben, but for Carter its
Day # of Shares
0 10
1 20
2 40
4. Plugin x values for 3 and 10
Ben: 2(3)^3 = 54 and 2(3)^10 = 118098
Carter: 10(2)^3 = 80 and 10(2)^10 = 10240
Amber: 3(4)^3 = 192 and 3(4)^10 = 3145728
5. The original graph and the new graph of Amber is the same except for that the graph is moved up 45 units up because Amber shared it with 45 people flat at her grandma's living facility
6. Amber's post obviously grows the fastest. This is true because she has the greatest growth value and she also has a good headstart of 45 elderly people.
7. This one is up to you, if you want more views in general then just agree with Amber, but if you want less view but with a good starting amount, then agree with Carter. Ben is a good mix if you can't decide or don't care
Step-by-step explanation:
4x−5y=6
−8x+10y=−12
Isolate x for 4x –5y = 6: x=6-5y/4
Substitute x= 6+5y/4
[-8 (6-5y/4) +10y=-12]
Simplify
[-12= -12 ]
The solutions to the system of equations are:
x=6+5y/4
Answer:
n-7=13
Step-by-step explanation:
We need to find an equation that represents the expression: "Seven less than a number is thirteen".
It means that a number minus 7 equals 13. So, the correct option is: n-7=13
Bonus: Solving for 'n' we have that n=20.
So, Seven less than 20 equals 13!!
Answers:
- Rational
- Rational
- Rational
- Irrational
- Rational
- Irrational
In short, 4 and 6 are irrational. Everything else is rational.
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Explanation:
A rational number is one in the form p/q where p,q are integers and q is nonzero. In the case of something like 3/5, we have p = 3 and q = 5.
Any terminating decimal can be converted to a rational number. Eg: 0.125 = 125/1000.
Any whole number is a rational number. Eg: 5 = 5/1.
Adding any two rational numbers leads to some other rational number.
Based on what is mentioned above so far, this means choices 1 through 3 are rational sums.
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Choice 4 is not rational because sqrt(2) is irrational. The rule is
irrational+rational = irrational
Choice 5 is a rational sum because sqrt(4) = 2 = 2/1
Choice 6 is irrational for similar reasons as choice 4. Here pi = 3.14... is irrational.
You're looking for the number 13 and 7 can go into.
You can use the listing method.
13: 13, 26, 39... and so on, and so on.
7: 7, 14, 21, 28, 35, 42, 49.... and so on.
An easier way to do it is to simply multiply 13 by 7.
13 and 7 can go into 91, evenly.
Hope this helped!