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3 years ago

A student pours water into a cup and places the cup in a freezer.After many hours ,the water will change from

Mathematics

2 answers:

Triss [41]3 years ago

6 0

C. liquid to solid.
When things get cooler, they go from gas to liquid to solid. If you know water is a solid, and you know it's cooling and changing states, then you can correctly infer that it is changing from a liquid to a solid.

Citrus2011 [14]3 years ago

6 0

C liquid to solid because the water will turn to ice and become a solid

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Find the y-intercept of the function 3x + 4y = 12

Sholpan [36]

Answer:

y-intercept = 3

Step-by-step explanation:

3x + 4y = 12

4y = -3x + 12

4y/4 = -3/4x + 12/4

y = -3/4x + 3

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3 years ago

A box contains five slips of paper. Each slip has one of the number 4, 6, 7, 8, or 9 written on it and all numbers are used. The

max2010maxim [7]

A. If the player chooses 6, 4, and 8 each time, they have 3/5 chances to win.

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4 years ago

Which expression is equivalent to cos(1.4x) − cos(0.6x)?

givi [52]

Answer:

A. -2sin(x)sin(0.4x)

Step-by-step explanation:

At x=0, the given expression evaluates to zero.

For x near zero, the given expression is slightly negative. You know this because cos(1.4x) decreases faster than cos(0.6x), so their difference will be negative.

Of the answer choices, you can eliminate C and D because they are not zero at x=0. You can eliminate choice B, because it is positive for values of x near zero. The only viable choice is A:

-2sin(x)sin(0.4x)

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Of course, a graphing calculator can help you figure this out. See the attachment. The given expression is plotted using a solid red line; the answer choice A is plotted using blue dots.

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3 years ago

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