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Murljashka [212]
3 years ago
6

Which of these things does not show that a reaction has occurred?

Mathematics
2 answers:
Rus_ich [418]3 years ago
7 0
I believe it may be C. Because, the color changing has nothing to do with the reaction you get.
Taya2010 [7]3 years ago
7 0
If my hypothesis is correct, the answer should be B. All answers, A, C, and D are chemical reactions. They are all reactions, but B does not fit the category, so they only answer could really be B. (I debated between both A and B because those are the only answers that can be correct)

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a jogger ran 3 miles due east of his house. then he ran 5 miles at a heading of 30 east of north. how far is he from his house a
Jobisdone [24]
Let's say her speed was x miles/hour during the first 3 miles runThen, time = distance/speedt1 = 3/x       eq1 In the next 4 miles run, her speed = x-1 miles/hourTime taken:t2 = 4/(x-1)      eq2 Now, total time:t1 + t2 = 1 3/5 hourssubstitute t1 and t2 from eqs. 1 and 2 3/x + 4/(x-1) = 1 3/5=> 3/x + 4/(x-1) = 8/5
=> 3(x-1) + 4x = 8x(x-1)/5=> 35x - 15 = 8x2 - 8x=> 8x2 - 43x + 15 = 0=> (8x-3)*(x-5) = 0=> x = 3/8 or 5 miles/hourx can not be 3/8 miles/hour because in that case, the speed during 4 miles run would be 3/8-1 = negative numberi.e. speed during 3 miles segment = 5 miles/hourand speed during 4 miles segment = 5-1 = 4 miles/hour
5 0
3 years ago
Use the intermediate value theorem to choose an interval over which the function, f(x)=2x^3 - 3x +5 is guaranteed to have a zero
Sergio039 [100]

Answer:

The answer is c. {0,2).

Step-by-step explanation:

8 0
3 years ago
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About how much medicine is in a medicine bottle
Paraphin [41]

Answer:

For measuring such small amounts of medicine, your doctor may give you a 1 cc syringe (there is that cubic centimeter thing again - remember, it is the same as a milliliter - ml).

...

measurement of medicines.

1/4 teaspoon 1.25 ml

1 teaspoon 5 ml

1-1/2 teaspoon 7.5 ml

1 tablespoon 15 ml

Step-by-step explanation:

7 0
3 years ago
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A cube has six sides that are numbered 1 to 6. The sides numbered 1, 2, and 5 are green, and the sides numbered 3, 4,
Katarina [22]

Answer:

5/6

Step-by-step explanation:

The sides numbered 1,2,5 are green and 2,4,6 are even  

We cannot count the 2 twice, so there are 5 unique possibilities of getting either a green or an even

There are 6 total possibilities when rolling the die  1,2,3,4,5,6

P (green or even) = green or even/ total

                             = 5/6

8 0
3 years ago
Estimate the sum <br><br> 1.37 + 0.9
guajiro [1.7K]

1.37 + 0.9\\\\\\=\dfrac{137}{100} + \dfrac{9}{10}\\\\\\=\dfrac{137}{100}+\dfrac{90}{100}\\\\\\=\dfrac{137+90}{100}\\\\\\=\dfrac{227}{100}\\\\\\=2.27

8 0
2 years ago
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