A) NO CHANGE B) are no good anymore. C) become obsolete. D) have lost their charm.
1 answer:
According to the passage, the correct answer has become obsolete. The correct option is C.
In Given, a passage that is shown in the attached photos.
Option C is the best answer. "obsolete" states clearly and concisely: the idea that skills can become obsolete. The meaning of obsolete is no longer in use as it has been replaced by something new and better or more trendy.
Options other than C are A, B and D are incorrect because they are unclear or because they convey an inappropriate tone for passing.
The correct choice from the given passage is therefore obsolete.
Learn more about passage from here brainly.com/question/12555695
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Step-by-step explanation:
We start by applying the Pythagorean theorem to the ladder, with its length L as the hypotenuse:
where x is the vertical distance from the top of the ladder to the ground and y is the horizontal distance from the bottom of the ladder to the wall. Taking the derivative of the above expression with respect to time, we get
Solving for dx/dt, we get
We know that
when x = 6 ft. So the rate at which the top of the ladder is going down is
The negative sign means that the distance x is decreasing as y is increasing.