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katen-ka-za [31]

4 years ago

10

The distance across a field is 20 m. Is the same distance across the same field greater or less than 20 km?

2 answers:

zavuch27 [327]4 years ago

8 0

It is less than 20 km.

Mrrafil [7]4 years ago

6 0

Less. The distance across the field is less than 20 km

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If a 12-meter-tall airplane hangar casts a 18-meter shadow at the same time a parked jet casts a 6-meter shadow , how tall is th

8090 [49]

Given
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----- --------- ----> y = ------- -----------> y= 5
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2 years ago

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Given f(x)=x^2+5 and g(x)=2x^3-1 find (f/g)(-3)

AlekseyPX

For this case we have the following functions:

$f (x) = x ^ 2 + 5\\g (x) = 2x ^ 3-1$

By definition of composition of functions we have:

$(f / g) (x) = \frac {f (x)} {g (x)}$

Then substituting:

$f (-3) = (- 3) ^ 2 + 5 = 9 + 5 = 14\\g (-3) = 2 (-3) ^ 3-1 = 2 (-27) -1 = -54-1 = -55$

So:

$(f / g) (- 3) = \frac {14} {- 55} = - 0.25$

Answer:

$(f / g) (- 3) = \frac {14} {- 55} = - 0.25$

7 0

3 years ago