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Oduvanchick [21]
3 years ago
9

Number 14 help I have to zoom with the answer in five minutes

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
8 0

Answer: 28

Step-by-step explanation:

VARVARA [1.3K]3 years ago
5 0

Answer:

31 over -3

Step-by-step explanation:

4.7+1.6=6.3x 5 =31.5-.5=31

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Answer:

y = -1/12 x + 11/3

Step-by-step explanation:

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miv72 [106K]

Step-by-step explanation:

(-\frac{7}{2} z +4)+(\frac{1}{5} z -15)\\\\=-\frac{35}{10} z+4+\frac{2}{10}z -15\\\\=-\frac{33}{10}z -11

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andreyandreev [35.5K]

Answer:

3.5% of 20, (0.035)*20, and 7% of 10

Step-by-step explanation:

Converting the mixed number (3 1/2) to a decimal yields 3.5, so 3.5% of 20 is correct.

3 1/2 is not equal to 3 1/2%, so 3 1/2 * 20 is not correct.

Converting the percentage to a decimal yields .035 which makes .35 too large, so (0.35) * 20 is not correct.

Changing the percentage to a decimal yields .035, so (0.035) * 20 is correct.

If you divide 20 by 2, you get 10, and if you multiply 2 by 3 1/2, you get 7. The 2 remains part of the expression, so it is equal to 3 1/2 of 20.

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3 years ago
What fraction is greater 1/4 or 3/8
Naya [18.7K]

Answer:

1/4 < 3/8

Step-by-step explanation:

We need to get a common denominator to compare.  We will use a common denominator of 8

1/4 *2/2    or 3/8

2/8 or 3/8

since the denominators are the same

2<3

so 1/4 < 3/8

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3 years ago
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In spring 2014, faculty from the City University of New York (CUNY) reported on a randomized controlled trial they conducted. Th
Lady_Fox [76]

Answer:

A) explanatory variable is "The extra support given by faculties"

B) the response variable is;

"How successful students who were placed directly into college - level statistics were able to outperform both elementary algebra treatment groups."

C) Confounding Variable is "ability of students to be successful or pass"

D) Experiment

Step-by-step explanation:

A) An explanatory variable is simply a type of independent variable used to explain the changes that occur in another variable. Furthermore, it can be manipulated by the researcher and is also used to predict differences in the response variable.

Now, from the question, we see that the variable "extra support by the faculties" is used to determine how successful community college students who were placed directly into college - level statistics were in outperforming both elementary algebra treatment groups.

Thus, the explanatory variable is "The extra support given by faculties"

B) In answer A above, we saw that the explanatory variable is used to predict the response variable.

We saw that the explanatory variable predicted how successful community college students who were placed directly into college - level statistics were in outperforming both elementary algebra treatment groups.

Thus, the response variable is;

"How successful students who were placed directly into college - level statistics were able to outperform both elementary algebra treatment groups."

C) A confounding variable is one that influences or changes the effect of the dependent & independent variable. It is therefore used to influence the result/outcome of an experiment/research.

From the question, it's clear that the ability of the students to pass or be successful is what influences the effect of the support by the faculties.

Thus, the Confounding Variable is "ability of students to be successful or pass"

D) The question portrays an experiment because it is being used to check if an hypothesis statement is true or false.

3 0
3 years ago
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