4 years ago

Draw a model to write 30/4

1 answer:

6 0

You have 30 cubes... you take those cubes into groups of 4
which you will end up with 7 groups of 4 and one group of 2 to equal 7.5

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An airplane is flying from New York City to Los Angeles. The distance it travels in miles, d is 0.15 per second of time, t.

garik1379 [7]

Here the function given by

f(d)=0.15t

Now

f(1):-

$\\ \sf\longmapsto f(1)=0.15(1)=0.15m$

$\\ \sf\longmapsto f(2)=0.15(2)=0.3m$

6 0

3 years ago

Which of the following reasons completes the proof in line 2?

olga55 [171]

Is there a picture? I don't know how to answer without the actual problem. Sorry,

8 0

4 years ago

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What is the lim of (((1/x)-(1/2))/x-2) , as x approaches 2

Katyanochek1 [597]

I assume the denominator is $x-2$ .

$\lim_{x\to2}\dfrac{\dfrac{1}{x}-\dfrac{1}{2}}{x-2}=\\
\lim_{x\to2}\dfrac{\dfrac{2}{2x}-\dfrac{x}{2x}}{x-2}=\\
\lim_{x\to2}\dfrac{\dfrac{2-x}{2x}}{x-2}=\\
\lim_{x\to2}\dfrac{2-x}{2x(x-2)}}=\\
\lim_{x\to2}-\dfrac{x-2}{2x(x-2)}}=\\
\lim_{x\to2}-\dfrac{1}{2x}}=\\
-\dfrac{1}{2\cdot2}=\\
-\dfrac{1}{4}=
$