What is the solution for the following system of linear equations? Give your answer in the form of an ordered pair.
1 answer:
Answer:
(1,1)
Step-by-step explanation:
3x + 2y = 5
4x − 9y = −5
Multiply the first equation by 4 and the second equation by -3 so we can eliminate x
4(3x + 2y) = 5
*4
Distribute
12x +8y = 20
-3(4x − 9y) = −5*-3
-12x +27y = 15
Add the two new equations together
12x +8y = 20
-12x +27y = 15
------------------------
35y = 35
Divide by 35
35y/35 = 35/35
y=1
Now we can find x
3x+2y =5
3x+2(1) =5
3x +2 =5
Subtract 2 from each side
3x+2-2=5-2
3x=3
Divide by 3
3x/3 = 3/3
x=1
(1,1)
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2x6=12 3x6=18 if that’s what your looking for
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Answer:
f(g(-3)) = 5
Step-by-step explanation:
To find f(g(x)) just plug in g(x) for x in f(x)
f(x)= x - 4
f(g(x)) = (6 - x) - 4
f(g(x)) = 6 - x - 4
f(g(x)) = 2 - x
Now to find f(g(-3)) we plug in -3 for x.
f(g(-3)) = 2 - (-3)
f(g(-3)) = 2 + 3
f(g(-3)) = 5
(4-x) /(3x+21)
The denominator cannot be zero
3x + 21 ≠ 0
3x ≠ -21
x ≠ -7
The domain of the function will be all real number except -7
{x | x ≠ -7}
Answer:
24 because 6 times 4 equal 24 and thats the area
Step-by-step explanation:
