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goblinko [34]
3 years ago
6

The function rule for the input/output table is to divide by 3. What number completes the table?

Mathematics
2 answers:
Citrus2011 [14]3 years ago
7 0
2..................................
FrozenT [24]3 years ago
3 0

Answer:

2

Step-by-step explanation:

divide 6 by 3 and you get 2 or do nine lines:

3, 6, 9,

12, 15, 18,

21, 24, 27

and then count how many 3s it took to get to 6, so in this case it is 2.

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(x+1)^2-(x-1)^2 dont kbow what to do
marshall27 [118]

Use this formula a2 − b2 = (a + b)(a − b)

<span>(x+1)^2-(x-1)^2  in this case, a = x+1, b = x-1</span>

<span>= [(x+1) + (x-1)] *  [(x+1) – (x-1)]</span>

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6 0
3 years ago
If A is the area of a circle with radiusr and the circle expands as time passes, find dA/dt in terms of dr/dt.
Katena32 [7]

Answer:

\frac{dA}{dt} = 2\pi r(\frac{dr}{dt})

Step-by-step explanation:

Your solution is correct (See explanation):

Area (A) of a circle is

A = \pi r^2

Where

r = radius

Differentiate both sides with respect to t

\frac{dA}{dt} = 2\pi r(\frac{dr}{dt})

<em>This is so because, we have to differentiate A on the left hand side and r on the right hand side because </em>2\pi<em> is a constant</em>

<em />

<em>Hence, your solution is correct and and</em>

\frac{dA}{dt} = 2\pi r(\frac{dr}{dt})

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