2 years ago

Why is it helpful to represent fractions and division with models?

1 answer:

4 0

Answer:

R fraction visual models are incredibly effective for teaching fraction concepts. Conceptual understanding means knowing the meaning of a numerators and a denominators. As well as understanding what actually happens when we perform fraction operations.

Step-by-step explanation:

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Square root of 3 Square root of 36 Square root of 9 Which number is irrational?

coldgirl [10]

Answer:

Square root of 3

Step-by-step explanation:

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2 years ago

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Using the graphing tool, determine the function for the graph that passes through the points (2.1,2.4), (4.3,6.8), and (6.1,1.9)

Paha777 [63]

Answer:

f(x) = -1.18056x² +9.55556x -12.4604

Step-by-step explanation:

As required by the problem statement, technology was used to find the polynomial function that passes through the given points. The coefficients shown above are rounded to 6 significant figures. The exact coefficients appear to be ...

f(x) = (-1 13/72)x² +(9 5/9)x -(12 221/480)

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3 years ago

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Find the side of a square whose diagonal is of the given measure. Given = 8 miles

Rzqust [24]

A square has 4 sides each of X miles. Its diagonal is X times Square Root of 2.
If the diagonal is 8 miles then 8 = xSqrt(2)
x = 8/Sqrt(2)
Rationalize the Denominator, i.e. multiply by Sqrt(2)/Sqrt(2)
X = 8Sqrt(2)/2
X = 4Sqrt(2)

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3 years ago

How long will it take to drive 30 miles going 15 mph?

mrs_skeptik [129]

Distance=speed times time

distance=30mi
speed=15mph
t=t

so
30=15 times t
divide both sides by 15
2=t

2 hours

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2 years ago

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Find the slope of the line through each pair of points. (- 12, 20 ). ( 15 ,- 12)

gtnhenbr [62]

Answer:

-32/27

Step-by-step explanation:

-12 - 20 -32 -32

----------- = ----------- = ----------

15 - (-12) 15 + 12 27

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2 years ago