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frez [133]
3 years ago
10

4y+5z = 4 3x−2y = 0 x+3z = -8, solve X, y, z

Mathematics
1 answer:
gogolik [260]3 years ago
8 0

Answer:

x = 4

y = 6

z = -4

Step-by-step explanation:

I GOT REPORTED WOW

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to test a hypothesis about a given variable, experimental and control groups are tested in parallel. which of the following best
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The Option A best explains the dual experiments: "In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made."

<h3>What is experimental design?</h3>
  • The process of deciding which variables to use in an experiment to test a particular hypothesis is called experimental design.
  • To properly collect data and evaluate the hypothesis, the experimental design method is used.

Now,

  • A specified variable is changed in the experimental group in a well-known fashion.
  • That selected variable is left unaltered in the control group so that comparisons can be conducted.
  • Control variables are variables that are utilized in an experiment to serve as a baseline against which the data from the experimental variables are gathered and evaluated (which is why the other answers are incorrect).
  • In the experimental group, it is advisable to modify just one variable at a time so that any differences from the control group may be quickly linked to the one variable that was altered.

Hence, amongst all the given options, The Option A best explains the dual experiments: "In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made."

To learn more about experimental design, refer to the link:brainly.com/question/17274244

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1 year ago
What is 3/7 divided by 1/3
Nataly [62]

Answer: 9/7

Step-by-step explanation:

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3 years ago
What numbers multiply with 189 and add with 66
Readme [11.4K]

Answer:

3 and 63

Step-by-step explanation:

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3 years ago
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Find the values of x and y that makes these triangles congruent by the HL therom.
Maurinko [17]
(1) x = 2y
(2) x + 4 = 3y + 1

subtitute (1) to (2)

2y + 4 = 3y + 1  |subtract 4 from both sides

2y = 3y - 3    |subtract 3y from both sides

-y = -3    |change the signs

y = 3

subtitute the value of y to (1)

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Answer: x = 6 and y = 3.
4 0
4 years ago
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Answer:

Slope is -3

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