Read the excerpt from "Marie Curie and the Discovery of Radioactivity." There it was—a big, heavy wagon, like the ones that brought much-needed coal for their lab’s dilapidated stove. But this wagon carried a far more precious and exciting load.

How do the words precious and exciting contrast with the word dilapidated to affect the author's tone in the passage?

The author is scornful toward the Curies for spending so much time working in their lab.

The author is critical toward the Curies for not spending enough time working in their lab.

The author is amused by the Curies' ability to work under these conditions.

The author admires the Curies' ability to do important work in poor conditions.

The words precious and exciting contrast with the word dilapidated to affect the author's tone in the passage as:

Option D

The author talks of a incapacitated oven that the Curies utilized in their lab just prior to referencing the valuable and energizing burden. The differentiation those descriptors being utilized in such closeness make is incredible.

These are the Curies we are discussing the astounding researchers behind the disclosure of radioactivity. However, they required coal for their bedraggled oven.

Their having the option to accomplish such significant work in such helpless conditions is exceedingly difficult to not appreciate.

That is by all accounts the motivation behind why the creator has made the differentiation by utilizing those modifiers. The creator appreciates their capacity and needs us to do likewise.

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I believe the contrast between the words serves to show:

D. The author admires the Curies' ability to do important work in poor conditions.

Explanation:

The author talks of a "dilapidated stove" that the Curies used in their lab right before mentioning the "precious and exciting load." The contrast those adjectives being used in such proximity create is great. These are the Curies we are talking about; the amazing scientists behind the discovery of radioactivity. Yet, they needed coal for their dilapidated stove. Their being able to do such important work in such poor conditions is almost impossible to not admire. That seems to be the reason why the author has created the contrast by using those adjectives. The author admires their ability and wants us to do the same.

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4

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