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Kaylis [27]
3 years ago
14

The system of equations is coincident. What are the missing values? x+3y=5 4x+__y=__

Mathematics
1 answer:
scZoUnD [109]3 years ago
3 0
x+3y=5|\cdot4\\
4x+\Box y=\Box\\\\
4x+12y=20\\
4x+\boxed{12}y=\boxed{20}

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Orlov [11]
M = y2-y1/x2-x1
m = 7- (-2)/ -6-(-7)
m = 9/1

slope = 9
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3 years ago
Brainliest? :(
Svetlanka [38]

Answer:

(f\cdot g)(x)=2x^2+10x+12

(f-g)(x)=-x-1

(f+g)(1)=10

Step-by-step explanation:

\tt f(x)=x+3

\tt g(x)=2x+4

(f\cdot g)(x)=f(x)\cdot g(x)=(x+3)(2x+4)=2x^2+4x+6x+12

=2x^2+10x+12

(f-g)(x)=f(x)-g(x)=x+3-(2x+4)=x+3-2x-4

=-x-1

(f+g)(1)=f(1)+g(1)=1+3+2(1)+4

=4+2+4=10

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7 0
2 years ago
What is the most important thing to remember when setting up a proportion
Andrew [12]

Answer:

This will help you answer the question

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7 0
3 years ago
In order to test for the significance of a regression model involving 3 independent variables and 47 observations, the numerator
matrenka [14]

Answer:

The correct option is  C

Step-by-step explanation:

From the question we are told that

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     The number of observation is  z =  47

     

Since n is are independent variables then their degree of freedom is  3

   The  denominator(i.e z) degrees of freedom is evaluated as

            Df(z) =  z - (n +1)

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So for the numerator (n) the degree of freedom is  Df(n) = 3

So for the denominator(i.e z) the degree of freedom is  Df(z) = 43

4 0
3 years ago
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statuscvo [17]

Answer:

$5,172.93

Step-by-step explanation:

We're gonna use the simple interest formula: P = A(1 + r(t))

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P = 5,172.9324

7 0
2 years ago
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