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Lana71 [14]
4 years ago
9

What is the solution of 3x + 5 = 2x – 7?

Mathematics
1 answer:
Schach [20]4 years ago
5 0

Answer:

the x-coordinates of the intersection point of the lines y = 3x + 5 and y = 2x – 7

Step-by-step explanation:

When you set two equations or functions equal to each other that is saying you want to know when the graphs intersect.  So the y and x intercept don't matter, unless you combined the terms like this.

3x + 5 = 2x – 7

x + 12 = 0 then that terms x intercept woudl be the x coordinate of the intersection of the other two terms.  But remember, this is onlyif you combines the two functions.  

Of your options you just want the ones dealing with the intersection point.  And of those two we are plugging in x, so we want the x coordinate.

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7/50 is in its simplest form because 7 is a prime number and it is not divisible by any number except 7 or 1
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The product of 2 and the cube of a number,
Alex73 [517]

Answer:

Please, what is your question?

3 0
3 years ago
A random sample of 2 measurements is taken from the following population of values: 0, 1, 3, 4, 7. What is the probability that
mafiozo [28]

Answer:

1/5

Step-by-step explanation:

Range as a measure of central tendency is the difference between the highest value and the lowest value in a given set of data.

Given the samples 0,1,3,4,7

Total number of samples is 5

The range is gotten by taking the difference of 2 samplesout of 5samples and this can be done in 5C2 ways.

5C2 = 5!/(5-2)!2!

= 5!/3!2!

= 5×4×3!/3!×2

= 10ways

The total outcome is therefore 10

To get the probability that the range is 4, we need to get the required outcome of getting range of 4 and this can only occur twice

The range can be gotten by taking the difference between 7 and 3, it can also be gotten by taking the difference between 4 and 0. Both differences will give us a total of 4

The expected outcome is therefore 2

the probability that the range of the sample is 4 = expected outcome/total outcome

= 2/10

= 1/5

7 0
3 years ago
Need answer asap evaluate the limit or state that the limit does not exist 7n-8n/2n
bagirrra123 [75]
\lim_{n \to \ 0 }  \frac{7n-8n}{2n} =  \lim_{n \to \ 0 }  \frac{-n}{2n} 
=  \lim_{n \to \ 0 }  \frac{-1}{2} =  \frac{-1}{2}
4 0
3 years ago
1) Find an equation of the tangent line at each given point on the curve.x = t2 − 4, y = t2 − 2tat (0, 0)at (−3, −1)at (−3, 3)2)
Anastasy [175]

Answer:

1) at ( 0,0) : y = x/2.   at(-3-1) : y = -1.   at(-3,3) : y = 2x +9

2) DNE ( does not exist )

Step-by-step explanation:

The general equation of tangent line

y - y1 = m( x - x1 )

attached below is the detailed solution on how i derived the answers above

8 0
4 years ago
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