Suppose you are an algebra teacher grading the following solution on an examination: − 3 ( x − 6 ) = 2 − x − 3 x − 18 = 2 − x − 2 x − 18 = 2 − 2 x = − 16 x = 8 You should note that 8 checks, so the solution set is (8). The student who worked the problem therefore wants full credit. Can you find any errors in the solution? If full credit is 10 points, how many points should you give the student? Justify your position.
Suppose you are an algebra teacher grading the following solution on an examination: − 3 ( x − 6 ) = 2 − x − 3 x − 18 = 2 − x − 2 x − 18 = 2 − 2 x = − 16 x = 8 You should note that 8 checks, so the solution set is (8). The student who worked the problem therefore wants full credit. Can you find any errors in the solution? If full credit is 10 points, how many points should you give the student? Justify your position.
Solution Summary: The author explains that the student's final answer is correct, but the steps in the question are wrong.
Suppose you are an algebra teacher grading the following solution on an examination:
−
3
(
x
−
6
)
=
2
−
x
−
3
x
−
18
=
2
−
x
−
2
x
−
18
=
2
−
2
x
=
−
16
x
=
8
You should note that 8 checks, so the solution set is (8). The student who worked the problem therefore wants full credit. Can you find any errors in the solution? If full credit is 10 points, how many points should you give the student? Justify your position.
eric
pez
Xte
in
z=
Therefore, we have
(x, y, z)=(3.0000,
83.6.1 Exercise
Gauss-Seidel iteration with
Start with (x, y, z) = (0, 0, 0). Use the convergent Jacobi i
Tol=10 to solve the following systems:
1.
5x-y+z = 10
2x-8y-z=11
-x+y+4z=3
iteration (x
Assi 2
Assi 3.
4.
x-5y-z=-8
4x-y- z=13
2x - y-6z=-2
4x y + z = 7
4x-8y + z = -21
-2x+ y +5z = 15
4x + y - z=13
2x - y-6z=-2
x-5y- z=-8
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f
Use Pascal's triangle to expand the binomial
(6m+2)^2
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A falling object travels a distance given by the formula d = 6t + 9t2 where d is in feet
and t is the time in seconds. How many seconds will it take for the object to travel
112 feet? Round answer to 2 decimal places. (Write the number, not the units).
Your Answer:
Chapter 1 Solutions
Algebra And Trigonometry 6th. Edition Annotated Instructor's Copy Blitzer
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