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3 years ago

What is 6+6 please reply

Advanced Placement (AP)

1 answer:

earnstyle [38]3 years ago

3 0

Answer:

$\\ \\ \\ \\ \\$

hope helpful <3"

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True or False- Assessments are necessary in order to plan a curriculum that is both individualized and age appropriate

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A ball is thrown at the ground from the top of a tall building. The speed of the ball in meters per second is v(t)=9.8t+v0, were

EleoNora [17]

Answer:

$V_0=2.7m/s$

Explanation:

The speed of the ball in meters per second is

$V(t)=9.8t+V_0$

Where t denotes the number of seconds since the ball has been thrown and $V_0$ is the initial speed of the ball. Then:

$V(2)=9.8(2)+V_0\\\\V(2)=19.6+V_0$

If the ball travels 25 meters during the first 2 seconds after it is thrown, what was the initial speed of the ball

Also, for constant acceleration motion, the average velocity is equal to the sum of final and initial velocities divided by 2 and to the distance divided by the time:

$\dfrac{V(t)+V_0}{2}=\dfrac{d}{t}$

Where you know:

t = 2s

$V(2)=9.8(2)+V_0=19.6+V_0$

d = 25m

Substituting (the units are ommited in the equationn, but added at end of the answer):

$\dfrac{V(2)+V_0}{2}=\dfrac{25}{2}$

$V(2)+V_0=25$

Thus, you have a system of equations:

$V(2)+V_0=25$

$V(2)=19.6+V_0$

Substituting the second into the first:

$19.6+V_0+V_0=25\\\\19.6+2V_0=25$

$2V_0=25-19.6\\\\V_0=5.4/2\\\\V_0=2.7m/s$

5 0

3 years ago

Explanations

podryga [215]

The sampling distribution of the sample means for the random sample of 100 dogs will be 0.25.

<h3>How to compute the sample mean?</h3>

From the given information, the population distribution of the QDA scores for the fur of dogs is roughly uniform with mean 5.4 and standard deviation is 2.5.

In this case, the sampling distribution of the sample means will be:

= ✓SD/n

= ✓(2.5)²/100

= ✓0.0625

= 0.25

In conclusion, the correct option is 0.25.

Learn more about sampling on:

brainly.com/question/24466382

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2 years ago

Climate change resulting from increases in greenhouse gas emissions is having a significant effect on the environment. However,

Andrej [43]

A . just seemed like the best choice

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1 year ago

Read 2 more answers

What is 6+6 please reply​

What is 6+6 please reply