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3 years ago

What is the correct classification of the system of equations below? 14x + 2y = 10 y + 7x = -5 parallel coincident intersecting

Mathematics

1 answer:

marissa [1.9K]3 years ago

5 0

In standard form the two equations are
7x +y = 5
7x +y = -5

The equations describe lines that are parallel.

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What is the slope of the line A. 0 B. 1 C. -4 D. Undefined

ohaa [14]

Answer:

undefined slope

Step-by-step explanation:

The line is a vertical line

Vertical lines have an undefined slope

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3 years ago

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V\Researchers periodically survey a few thousand of the patients taking a certain medication in order to make connections betwee

yanalaym [24]

Answer:

The correct answer is - an observational study.

Step-by-step explanation:

It is given that, Researchers periodically survey a few thousand of the patients. These are taking specific medicine patients and researchers taking this survey to find the connection between that medication and the subjects' general health.

So, it can say that the researchers observed the patient's health by the effect of the medication, therefore, the Observational Study is the given method of gathering data.

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3 years ago

Describe the error in the work shown.

mihalych1998 [28]

The error was in second step.

3√(y^3)^4 = y^4

(Cube root cancels cube and not power 4)

The answer should be:

xy^4/4

//Hope it helps.

4 0

3 years ago

last year, debra opened an investment account with $7600. At the end of the year, the amount in the account had increased by 29.

-BARSIC- [3]

There are $9842 in her account at the end of last year.

Step-by-step explanation:

Given,

Amount in account = $7600

Increment by the end of year = 29.5%

Amount of increase = 29.5% of amount in account

Amount of increase = $\frac{29.5}{100}*7600$

Amount of increase = 0.295*7600 = $2242

The increase is $2242.

Amount after increase = 7600 + 2242 = $9842

There are $9842 in her account at the end of last year.

Keywords: percentage, division

Learn more about percentages at:

#LearnwithBrainly

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2 years ago

Plot 9/10 and 1 2/5 on the number line below

HACTEHA [7]

First one is 9/10 second is 1 2/5

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2 years ago