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2 years ago

True or False: (1, 3) is a solution to the system of linear equations shown

Mathematics

2 answers:

trapecia [35]2 years ago

8 0

Answer:

True

Step-by-step explanation:

You can substitute x = 1 and y = 3 into both equations and see if it's true or not.

y = 4x - 1

becomes

3 = 4(1) - 1

3 = 4 - 1

3 = 3

True

y = x + 2

becomes

3 = 1 + 2

3 = 3

True

Since both equations come out true, this (1, 3) is a solution.

astraxan [27]2 years ago

4 0

Answer:

True

Step-by-step explanation:

(1, 3) is a solution to the system of linear equations shown is true

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Answer:

The owner says that she will work 12 hours more than you if you get the job.

We know that she works 50 hours each week.

then, knowing that she works 50 hours per week and that she works 12 hours more than you, you have that, if H is the number of hours that you work per week, you have:

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What two numbers multiply to 10 and add to -29 ?

Degger [83]

Xy=10
x+y=29

subtract x from both sides for second equation

y=-x-29
subsitute in second equaiton
x(-x-29)=10
-x^2-29x=10
add x^2+29x to both sides
x^2+29x+10=0
quadratic formula
if you have
ax^2+bx+c=0,
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

so
x^2+29x+10=0
a=1
b=29
c=10
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x= $\frac{-29+/- \sqrt{801} }{2}$
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igor_vitrenko [27]

Answer:

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Step-by-step explanation:

Substitute:

V = lwh

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V = 40(14)

V = 560 in^3

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3 years ago

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