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vampirchik [111]
3 years ago
14

Find the solution to the system of equations graphed here.

Mathematics
2 answers:
svp [43]3 years ago
4 0

This can be solved by finding their point of intersection on the graph, which is at point (1,3).

polet [3.4K]3 years ago
3 0
There is no picture, but you would substitute the first number for the x and the second for the y
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Four less than the quotient of a number 1 and 5.
zhannawk [14.2K]

Answer:

Step-by-step explanation:

You should know that quotient is the result of division.

 

n/2

 

Four less than that would be subtracting.

 

(n/2) - 4 = 9

5 0
4 years ago
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Which describes the first step in solving the equation 4x - 7 = -15?
GalinKa [24]

Answer:

Add 7 to both sides

Step-by-step explanation:

You would need to add 7 to both sides to cancel out the 7 on the right side of the equation to get x one step closer to being by itself.

Then you would get 4x = -8.

Next divide by 4 on both sides to get x by itself so do the inverse operation of what 4 was doing to x.

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3 years ago
A 90% confidence interval for u using the sample results X = 131.2, s=55 , and n= 50 Round your answer for the point estimate to
Ilya [14]

Answer:

131.2 ;

12.8 ;

(118.4, 144)

Step-by-step explanation:

Given :

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Since, sample size is large (n > 30) ; the sample mean = population mean according to the center limit theorem :

Margin of Error = Zcritical * s / sqrt(n)

Zcritical at 90% = 1.645

Margin of Error : 1.645 * (55 / sqrt(50))

Margin of Error : 1.645 * 7.7781745

Margin of Error = 12.795097

Margin of Error = 12.8

The confidence interval (C.I) :

C.I = x ± margin of error

C. I = 131.2 ± 12.8

(131.2 - 12.8) ; (131.2 + 12.8)

(118.4, 144)

8 0
3 years ago
Combine the like terms to make a simpler expression: 5n+6+(-7n)<br> plz hurry
azamat
-2n + 6 is the answer to this question
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taurus [48]
$420 is the correct answer
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4 years ago
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