Ask question

Ask question

All categories

3 years ago

5

F(x) = x2 + 10 What is the average rate of chan hange of f over the interval [-2, -1]?

1 answer:

Readme [11.4K]3 years ago

5 0

The average rate of change is given by [f(b) - f(a)]/(b - a), where a and b represent the interval [a, b].

Let a = -2

Let b = -1

[(-1)^2 + 10 - ((-2)^2 + 10)]/(-1 -(-2))

[1 + 10 - (4 + 10)]/(-1 + 2)

[1 + 10 -4 -10]/(1)

[1 - 4]/(1)

-3/1

Answer: -3

You might be interested in

What the answer to this problem

victus00 [196]

5n=30+3n You need to exclude the 4 due to for the first 4GB cost $30 then $3 for each additional GB used

4 0

3 years ago

Read 2 more answers

Two tourists went on a hike at dawn. One went from a to b and another one went from b to a. They met at noon but did not stop an

Alecsey [184]

<span>Dawn was at 6 am. Variables a = distance from a to passing point b = distance from b to passing point c = speed of hiker 1 d = speed of hiker 2 x = number of hours prior to noon when dawn is The first hiker travels for x hours to cover distance a, and the 2nd hiker then takes 9 hours to cover that same distance. This can be expressed as a = cx = 9d cx = 9d x = 9d/c The second hiker travels for x hours to cover distance b, and the 1st hiker then takes 4 hours to cover than same distance. Expressed as b = dx = 4c dx = 4c x = 4c/d We now have two expressions for x, set them equal to each other. 9d/c = 4c/d Multiply both sides by d 9d^2/c = 4c Divide both sides by c 9d^2/c^2 = 4 Interesting... Both sides are exact squares. Take the square root of both sides 3d/c = 2 d/c = 2/3 We now know the ratio of the speeds of the two hikers. Let's see what X is now. x = 9d/c = 9*2/3 = 18/3 = 6 x = 4c/d = 4*3/2 = 12/2 = 6 Both expressions for x, claim x to be 6 hours. And 6 hours prior to noon is 6am. We don't know the actual speeds of the two hikers, nor how far they actually walked. But we do know their relative speeds. And that's enough to figure out when dawn was.</span>

8 0

3 years ago

An electrical shop reduces display goods by 20%. A display TV is sold for £200. What is the usual price of the same TV?

Fynjy0 [20]

200 is 80%
200 / 80 = 2.50 (1%)
2.50 * 100 = £250

Hope this helps.

8 0

3 years ago

Algebra 2 help plsass

Novosadov [1.4K]

Answer:

A

Step-by-step explanation:

6 0

3 years ago

Hey, wanna pair our account on Brainly so we can share the perks? https://brainly.com/invite/d400e5c3acee453f3779cad4a83f3cb3?ut

saw5 [17]

Answer:

Hey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c=bfp_account_management&utm_term=studentHey, wanna pair our account on Brainly so we can share the perks? brainly.com/invite-parent/5cf66c6fd5c87c53eb45bb2c79eda2c1?utm_source=invite&utm_medium=link&utm_campaign=bfp_account_management&utm_term=student

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers