GES100-SP18-D Zimmermann Homework 1 If X is directly proportional to Y, which of

Question

GES100-SP18-D Zimmermann Homework 1 If X is directly proportional to Y, which of the following statements is true? A. If X is doubled, Y doubles. B. If X is doubled, Y is halved C. If x is doubled, Y is tripling D. If X is halved, Y doubles. Answer:A_ 4. Which of the following statements could be tested scientifically to determine whether it is true or false? A. Women are shorter than men. B. Most of the sun's energy is in the form of heat energy C. Unicorns are now extinct. D. Beethoven wrote beautiful music. E. Earth was created over 4 billion years ago. F. Earth was created in a miraculous event G. Diamond is harder than steel. H. Soccer is a better sport than football. 1. God exists J. Vanilla ice cream tastes better than chocolate pudding K. Men are better scientists than woman. Answer B&G; to search

Explanation / Answer

3) y varies directly with x.

y = kx
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if x is doubled, what happens to y
y = k(2x)
y = 2kx
"y" is doubled

So, in my openion option A is correct.

4) Regarding this part we can't scientifically prove women are shorter than men in labs

we can't scientifically prove unicorns are now extict in labs

we can't scientifically prove beethoven wrote beautiful music in labs as taste of everyone is different

we can't scientifically prove earth was created over 4 billion years ago in labs

and similarly we can't prove all other options mentioned scientifically except option B & G.

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