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Vikentia [17]
3 years ago
7

How many solutions does the system of equations below have?

Mathematics
2 answers:
BaLLatris [955]3 years ago
6 0

Answer:

C:  none

Step-by-step explanation:

Here we have two separate functions named 'y.'  Eliminate 'y' temporarily by equating these functions together:

x + 2 = y = x - 1

Subtracting x from both sides, we get:

0 + 2 = y = 0 - 1, or

       2 = -1

This is never true, so C is the correct answer:  NO solutions.

An easier way in which to do this problem is to visualize the graphs of

y = x + 2 and y = x - 1.  The graphs are parallel straight lines; they never intersect, and therefore we can conclude "no solution."

galben [10]3 years ago
4 0

Answer:

C

Step-by-step explanation:

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Reika [66]

Answer:

the answer is n=4

Step-by-step explanation:

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3 years ago
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when sunayana purcased a video-game she paid Rs 162.50 as VAT at the rate of 13%. find its cost without levying VAT. Rs 1250 is
horsena [70]

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Step-by-step explanation:

Let x be the cost before vat

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3 0
3 years ago
How do I solve this equation?
Norma-Jean [14]

Answer:

1. move the constant to the right hand side to change its sign.

2.add the numbers.

3. using the absolute value definition rewrite the absolute value equation as two separate equations.

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Step-by-step explanation:

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Find the average rate of change for f(x) = x2 + 9x + 18 from x = −10 to x = 10.
igor_vitrenko [27]
The average rate of change formula is 
           f(b) - f(a)
arc = ----------------
               b-a
                    
Here, a= -10 and b = 10

                   (10)^2 + 9(10) + 18 - [ (-10)^2 + 9(-10) + 18]
Here arc = --------------------------------------------------------------
                                     10 - (-10)

10^2 and -(-10)^2 cancel.     18 - 18 cancel.

                                               90 - (-90)            180
This leaves us with     arc = ----------------- = ------------- = 9 (answer)
                                                   20                     20
7 0
3 years ago
NEED HELP ASAP! WILL MARK BRAINlIEST!
vaieri [72.5K]

Answer: 105 is your sum.

7 0
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