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2 years ago

Find the average rate of change of the function f(x) = 1/x-2 between the given points x = 4 and x = 8

Mathematics

1 answer:

Sedbober [7]2 years ago

7 0

If f(x) = 1/x - 2, then the average rate of change between x = 4 and x = 8 is

(f (8) - f (4)) / (8 - 4) = ((1/8 - 2) - (1/4 - 2)) / 4 = -1/16

If you meant f(x) = 1/(x - 2), then it would be

(f (8) - f (4)) / (8 - 4) = (1/(8 - 2) - 1/(4 - 2)) / 4 = (1/6 - 1/2) / 4 = -1/12

Make sure to check which one is the correct function!

Read more about percentage at:

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8 0

1 year ago

(-2)3= (-6)2= Evaluate (-2)3= (-6)2=

Tamiku [17]

-2*3 = -6
-6*2 = -12

5 0

3 years ago

Read 2 more answers

WILL GIVE BRAINLIEST

PtichkaEL [24]

Answer:

3.2

Step-by-step explanation:

depending on what W-T looks like it seems the best answer

3 0

3 years ago

Read 2 more answers

A blimp is flying at a speed of 40mph and going in a direction of 80 degrees. After 3 hours of flying it turns and travels 1 hou

kykrilka [37]

Bearing is a topic that can be used to locate the position of an object at a given time. Therefore, the blimp is 80 m far away from its starting point. And in the North-East direction.

The speed of an object relates the distance it covers to the time taken to cover the said distance.

i.e speed = $\frac{distance}{time taken}$

⇒ distance = speed x time taken

In the given question, the initial distance covered can be determined as;

distance = 40 mph x 3 h

= 120 m

The final distance covered can be determined as;

distance = 40 mph x 1 h

= 40 m

Let the distance from its starting point to its final location be represented by x.

Thus applying the Cosine rule, we have:

$c^{2}$ = $a^{2}$ + $b^{2}$ - 2abCos C

$x^{2}$ = $120^{2}$ + $40^{2}$ - 2(120 x 40) Cos 90

= 14400 + 1600 - 9600

$x^{2}$ = 16000 - 9600

= 6400

x = $\sqrt{6400}$

= 80

x = 80 m

Therefore, the distance of the blimp from its starting point to its final destination is 80 m.

For more clarifications on bearings, visit: brainly.com/question/22979472

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6 0

2 years ago

Help ! i should really pay attention in class

lara [203]

Answer:

I think its b

Step-by-step explanation:

4 0

3 years ago

Find the average rate of change of the function f(x) = 1/x-2 between the given points x = 4 and x = 8​

Find the average rate of change of the function f(x) = 1/x-2 between the given points x = 4 and x = 8