3 years ago

Please answer ( btw question number 2 is the vocabulary)

Mathematics

1 answer:

saveliy_v [14]3 years ago

8 0

Answer:

The complex fraction and the fraction do not have the same decimal equivalent. 21/3/120/12 is a terminating decimal when converted and 7/9 is a repeating decimal when converted therefore they are not decimal equivalents.

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The system shown has the unique solution (2, y, z). Solve the system and select the values that complete the solution. y = 0 y =

madreJ [45]

So we are given a system:
$3x-2y+3z=0\\
-3x - 5y - 5z= -21$
Substitute x = 2 we get the system:
$-2y+3z=-6\\
- 5y - 5z= -15$
Multiply the first equation by -5 and the second by 2 we get the system:
$10y-15z=30\\
- 10y - 10z= -30$
Adding the two equations we get :
$-25z=0\text{ then}z=0.$
We find the value of y by using any of the other equations like this:
$-2y=-6\\y=3.$
Final solution:
$z=0,y=3$

8 0

3 years ago

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7(5-4x) in distributive property

kati45 [8]

Answer:

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