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Korolek [52]
3 years ago
10

Hans is performing an experiment examining how salt affects the speed at which water freezes. He fills four equally sized contai

ners with the same amounts of water. Then, in three of the containers, he stirs in varying amounts of salt. The fourth container remains plain water.
Hans places all four of the containers in the same freezer and checks the containers every five minutes, recording when the water in each container freezes solid.

In this situation, what do Hans’s time measurements represent?

A.
the response variable
B.
the control group
C.
the response group
D.
the explanatory variable
Mathematics
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer:

Answer B.

Because we know He's checking the experiment every 5 minutes.

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Pls somebody solve this I still don’t understand it yet :/ please
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Answer:

first blank 39, second 9/39 i think, and third 351

Step-by-step explanation:

i haven't done something like this in a long time so i dont know if its completely correct or correct at all

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3 years ago
List the steps that should be used to solve the equation f(x) = g(x) by graphing when f(x) = (1/2)² - 3 and g(x) = 3x + 5?
jolli1 [7]

value of x is: x=\frac{-31}{12}

Step-by-step explanation:

We need to solve the equation f(x)=g(x)

where f(x)=(\frac{1}{2})^2-3

and g(x) = 3x + 5

Solving to find f(x)=g(x)

Putting values of f(x) and g(x)

f(x)=g(x)\\(\frac{1}{2})^2-3=3x + 5\\\frac{1}{4}-3=3x + 5\\Subtarct\,\,5\,\,on\,\,both\,\,sides:\\\frac{1}{4}-3-5=3x + 5-5\\\frac{1}{4}-8=3x\\Taking\,\,LCm\,\,on\,\,left\,\,side\\\frac{1-8*4}{4}=3x\\\frac{-31}{4}=3x\\Divide\,\,both\,\,sides\,\,by\,\,3\\x=\frac{-31}{4*3}\\x=\frac{-31}{12}

So, value of x is: x=\frac{-31}{12}

The graph will be a straight line x= -2.58 or x = -31/12

Keywords: Composition of Functions

Learn more about Composition of Functions at:

  • brainly.com/question/10772025
  • brainly.com/question/4939434
  • brainly.com/question/2723982
  • brainly.com/question/1774827

#learnwithBrainly

7 0
3 years ago
Table of Nutritional Content The FDA requires fast food companies to publish the nutritional content of their meals. The above t
Vesna [10]

Answer:

calories per gram:

Fat: 9

Carbohydrate: 4

Protein: 4

3 0
3 years ago
Helppppppppppppppppppppp
docker41 [41]
Answer:
1.796

Explanation:
log base 6 of 25 can be rewritten as:
log base 6 of (5^2) = 2 * log base 6 of 5 
                               = 2 *0.8982
                               = 1.7965

Hope this helps :)
3 0
3 years ago
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