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NARA [144]
4 years ago
6

Which of the following is most responsible for the change in the emissions of volatile organic compounds ( VOC ) from 1970 to 20

20 as shown in the graph? A decrease in the number of vehicles fitted with catalytic converters and an increase in the number of hybrid vehicles beginning in 1970. A A decrease in the average driving distance in the United States from 1970 to 2020 that resulted from increased urbanization. B An increase in air emission standards that began in 1970 that regulated corporate average fuel economy ( CAFE ) standards. C An increase in VOC emissions from car exhausts that resulted from increased driving distances from 1970 to 2020.
Advanced Placement (AP)
1 answer:
lesantik [10]4 years ago
8 0

Answer:

The most correct option is;

B. An increase in air emission standard which began in 1970 that regulated corporate average fuel economy standards

Explanation:

In 1966, due to the introduction of the control of pollution from motor vehicle emission standard which required air pumps with a higher efficiency and the 1970 requirements set to ensure automobile manufacturers attain the smog forming combustion control standards evidence has shown modern automobiles emit much less smog forming hydrocarbon and VOCs than they did in the 50s' or 60s'

The Corporate Average Fuel Economy (CAFE) standards came into effect in 1975 improving fuel efficiencies by up to 14%.

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AP Calculus AB - Differentiating using the Product Rule
faltersainse [42]

Answer:

  h'(t) = (√t)(1 -5t²)/(2t)

Explanation:

First of all, your product rule needs to be written correctly.

  (f(x)g(x))' = f'(x)g(x) +f(x)g'(x)

You have ...

h(t)=\sqrt{t}(1-t^2)\\\\f(t)=\sqrt{t} \qquad f'(t)=\dfrac{1}{2\sqrt{t}}=\dfrac{\sqrt{t}}{2t}\\\\g(t)=1-t^2 \qquad g'(t)=-2t\\\\h'(t)=f'(t)g(t)+f(t)g'(t)=\dfrac{\sqrt{t}}{2t}(1-t^2)+\sqrt{t}(-2t)\\\\h'(t)=\dfrac{\sqrt{t}(1-t^2-4t^2)}{2t}=\dfrac{\sqrt{t}(1-5t^2)}{2t}

4 0
3 years ago
It's important to recognize children when they follow the rules because not doing so can
nekit [7.7K]

<u>Answer:</u>

Option D. It's important to recognise children when they follow the rules because not doing so can cause them to act out to receive adult attention.

<u>Explanation:</u>

Every human being regardless of his age, expects validation and acceptance from the surrounding in which he lives, children aren’t an exception from the list.

It is most important to recognise the actions of the children when they follow the rules as doing so would encourage them to do the same action when they encounter the same situation in the future and helps in increasing the child’s self image, self esteem and emerging as a self regulating child.

In the case of not recognising the actions would lead to a situation where the children would start breaking the rules, just in order to grab your attention and this would continue in a cyclic manner if it is not treated effectively by the adults which will eventually lead to behavioural problems.

Hence the right answer is, Option D.

4 0
3 years ago
A state government is attempting to reduce the digital divide. Which of the following activities has the greatest potential to c
Vinvika [58]

Answer:

Option C

Explanation:

Digital divide basically increase the difference between the people who use and have technology and technology products with people who neither use technology nor they have technology products.

Options C is the only choice which indicate no substantial contribution of government in the making any change in the digital divide.  

Hence, option C is the right answer

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3 years ago
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vekshin1

Answer:

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Explanation:

8 0
3 years ago
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jonny [76]

Answer:

It is enormously necessary for each individual to be able to find a balance between their freedoms and their responsibilities, in such a way that with their freedoms individuals do not affect the freedoms and rights of others. Thus, each person must exercise his freedom in a responsible way, and it is his responsibilities precisely those that limit the freedom of individuals. In this way, for example, work, family and academic responsibilities limit the freedoms of the individual, and put him in a framework of self-regulation along with the rest of the individuals, who are in the same situation.

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3 years ago
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