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Sergio039 [100]
4 years ago
14

How many Real Solutions

Mathematics
2 answers:
nexus9112 [7]4 years ago
5 0
Seems like 2 solutions to that equation. Not quite sure though, sorry.
Oduvanchick [21]4 years ago
5 0

Answer:

D.0

Step-by-step explanation:

Our system of equations is

  • y= x²+1
  • y=x

then we can conclude that

  • x²+1 = x
  • x²+1-x = 0
  • x²-x+1 = 0

This is a quadratic equation so we will use the dicriminant method:

Let Δ be our dicriminant

  • a= 1
  • b= -1
  • c= 1
  • Δ = (-1)²-4*1*1 = 1-4 = -3 < 0

The dicriminant is negative so this equation has no real solutions

the the system has no real solutions

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After college you start a job earning $40,000 a year. You get a 6% raise each year.
alex41 [277]
Answers: A) $44,944
B) $50,499.0784


Math: Using the percentage calculator linked below 6% of $40,000 is $2,400. Since you're getting your second raise after your first and since it is a 6% raise from what you're getting paid at that time we add pay raise 1 to your starting pay before calculating the 6% for pay raise 2. $40,000+$2,400=$42,400. 6% of $42,400 is $2,544. $42,400+$2,544=$44,944, Since that is two pay raises that would be your earnings at the end of year two (answer A).
We continue calculating 6% then adding that onto the total before calculating it for the next year for problem B.
6% of $44,944 is $2,696.64. $44,944+$2,696.64=$47,640.64.
6% of $47,640.64 is $2,858.4384. $47,640.64+$2,858.4384=$50,499.0784. That's answer B.


Hopefully you can figure out C on your own! I feel a little bad for giving a partial answer but I think you can do this!

Percentage calculator used-https://percentagecalculator.net/
Note: can't handle commas, remove all commas before entering data in.
7 0
3 years ago
Write an expression that represents the total owed for 6 months of cable at a price of c dollars for each month, plus a one-time
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Answer is 6(c) + 50

Step by step

We know the following

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We multiply 6 months times the unknown “c” per month. Then we add the one time fee.

The other three options multiply $50 by 6 months, by 2 and by “c”, therefore not correct.
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1 year ago
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Answer:2:42

Step-by-step explanation:

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Distribution is the way I learned it.

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