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4 years ago

Which of the following graphs below represents the motion of an object at variable speeds?

Advanced Placement (AP)

2 answers:

PolarNik [594]4 years ago

5 0

c. because it's the only one that starts at zero

ryzh [129]4 years ago

3 0

I think the answer is c.

Hope this helps.

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According to the book of odds, the probability that a randomly selected US adult usually eats breakfast is 0.61.

Klio2033 [76]

Answer:

a) This means that if you were to take a large sample of US adults and inquire them about having breakfast, about 61%(i.e. 0.61) will say that they usually have breakfast.

b) It is, for sure, expected that if we take a sample of 100, around 61% of these americans will say that they usually eat breakfast. But if the number will be 61 exactly is not a certainty and it will vary from sample to sample.

The probability of finding such people will get closer to 0.61 as the sample gets bigger.

Explanation:

Explanation has been provided in the answers above due to their descriptive nature.

8 0

4 years ago

Please Help Me, Will mark brainliest :)

LuckyWell [14K]

Answer:

it should be c

Explanation:

3 0

3 years ago

B) Explain ONE external development that led to the collapse of the Qing Empire in the early twentieth century.

Digiron [165]

Answer and Explanation:

A. The main external reason for the fall of the Qing Dynasti was the pressure of the great European powers in commercial relations, which caused a complete political disorganization, within a government that already showed many signs of incompetence and corruption. This led to serious management failures, provoking helping the fallen dynasty.

B. Geographical differences may be the main reason why the collapse of the Ottoman empire and the Qing dynasty unfolded differently. In addition, the political and religious organization of the two regions also influences the different way in which these collapses developed.

5 0

3 years ago

The equations of the tangent to the curve y=xsinx at the point (pi/2,pi/2) is

never [62]

The first thing you have to realize is that tangent is the slope of a curve on a given point. You can solve for the slope by finding the derivative of the given function. So:

$\frac{d}{dx} xsin(x)$

Next use product rule (I recommend watching videos if you're confused):

$= [sin(x)] + [x*cos(x)]$

Next substitute you x-value (π/2) into your derivative:

$= [sin( \frac{ \pi}{2} )] +[ \frac{\pi}{2}*cos( \frac{\pi}{2})]$
$= 1 + \frac{\pi}{2} *0$
$= 1$

So our slope at π/2 is 1. Next we use our slope-form and substitute our given value and solve for y-intercept (algebra-stuff)

$( \frac{\pi}{2}) = 1( \frac{\pi}{2}) + b$
$b = 0$

So we get our equation:

$y = x$

So our answer is E

Feel free to ask any questions.
Hopes this helps!

8 0

4 years ago

Ryan is a young teen who has constant access to the Internet. In what way is he likely to misuse this access?

erik [133]

Answer:

B. by chatting with friends

C. by downloading violent or sexual content

Explanation: The immoderate use of internet can decrease Ryan's concentration for studying and lead him to explore deeper into the internet world. By having access to almost everything online, he can delve into online sexual content and develop interest in it. Since the content varies, it is most likely for Ryan to get attracted to violent content. Also, as a teenager, instead of using internet to gather information for a lecture or a test, he can quickly lose interest by being online with his friends constantly. Therefore, it is very important for parents to have some kind of control of the teenager's online surfing since it can deeply affect his concentration, mental health and view of sexual intercourse.

4 0

4 years ago