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Mathematics

1 answer:

Naya [18.7K]2 years ago

4 0

Answer:

The answer is 1 3/8 (B)

Step-by-step explanation:

3 1/4 - 1 7/8 = 1 3/8

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Add. (5x - 2y + 7) + (3x + y - 8)

Schach [20]

Answer:

$=8x-y-1$

Step-by-step explanation:

So we have the expression:

$(5x-2y+7)+(3x+y-8)$

Combine like terms:

$=(5x+3x)+(-2y+y)+(7-8)$

Add:

$=8x-y-1$

And we're done!

3 0

3 years ago

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An operational definition is used to ____ a hypothetical construct.

Alona [7]

An operational definition can both define and measure the hypothetical construct. The hypothetical construct is also called psychological construct is an explanatory variable which cannot be directly observed. It is also a tool to understand someone’s behavior. For example measuring you friend happiness.

8 0

3 years ago

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How could you find an even better estimate of the square root of 2

vodomira [7]

Answer:

First of all you need to know the $\sqrt {4}$ it's equal to 2 and

$\sqrt {1}$ which is the number is between 1 and 2 and between that number there maybe the possibilities of above 0.5 or under 0.5

After that Figure out which one was bigger? $\sqrt {2}$ or $\sqrt {3}$ ? The answer is $\sqrt {3}$ and $\sqrt {3}$ also near to $\sqrt {4}$ so it should be above 0.5 .