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3 years ago

Why is the use of existing data, especially in comparative and historical research, especially helpful to students?

Mathematics

1 answer:

mr Goodwill [35]3 years ago

7 0

Answer: For more Information and insight.

Step-by-step explanation:

The use of historical and comparative existing data is important to students because it gives them an insight on what they are working on.

Previous datas contains certain informations from which new observations and assessments can be made.

Students uses existing data to compare and contrast different factors like if there was a rise or fall in the system they are working on, the also check if an major changes occurred or things were significantly the same from the past to present.

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This is my question

Talja [164]

Answer/Step-by-step explanation:

∆ABC is similar to ∆CDE. Therefore, the ratio of their corresponding sides are proportional.

This,

$\frac{DE}{AB} = \frac{DC}{AC}$

$\frac{4}{3} = \frac{x + 3}{x + 1}$

Solve for x

$4(x + 1) = 3(x + 3)$

$4x + 4 = 3x + 9$

$4x + 4 - 4 = 3x + 9 - 4$

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$x = 5$

Use the value of x to find AC and DC

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3 years ago

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3 years ago

Read 2 more answers

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spin [16.1K]

Answer:

10 yd 15 in, or 10.33 3 in.

If one foot is .33 repeating of a yard, then

10.33 3 inches is your answer.

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3 years ago

Can someone help me with finding the slope of the graph- ONLY GRAPH

Alinara [238K]

Answer:

Step-by-step explanation:

( $x_{1}$ , $y_{1}$ )

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2 years ago

Quick!

MAVERICK [17]

Answer:

y=-x-2

Step-by-step explanation:

To find the slope of the line, you can use the slope formula. I did this with (-3,1) and (2,-4) to get: (1+4)/(-3-2). This ends up as -5/5, which simplifies to -1.

next I plugged in the slope and one point into the line equation: y=mx+b. I plugged in (-4)=(-1)(2)+b. This equated to b=-2.

Check Work:

The equation -4=(-1)(2)-2 is true

The equation 1=(-1)(-3)-2 is true

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3 years ago