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Arlecino [84]
3 years ago
9

A high school student named David Merrell did a study of how music affects the ability of rats to run a maze. He trained 71 rats

to run a maze. Next he randomly divided the rats to three groups. Each group had 23 or 24 rats. For the next month, one group of rats listened all day to heavy metal music by the group Anthrax. One group listened all day to Mozart. One group never heard music. The rats ran the same maze three times a week for a month. The response variable is the time in seconds to complete the maze. By the end of the month he compared the average run time for each treatment group to the average run time for the control group. The Anthrax group was much slower at running the maze. The Mozart group was much faster. The differences are statistically significant at the 1% level. Run times are not heavily skewed in any group. What conclusion can we draw from these results?
Mathematics
1 answer:
ladessa [460]3 years ago
3 0
I don’t understand what you are saying...
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erastovalidia [21]

Answer:

A. -6 ≤ y ≤ 9

Step-by-step explanation:

→Looking at the graphed function, you can see that the line starts at when y = -6. Then the function slowly increases, until it finally stops when y = 9.

→This means that the range (y-values) of the function can be from -6 through 9.

<u>The correct answer should be "A. -6 ≤ y ≤ 9."</u>

6 0
3 years ago
What two consecutive integers equal 347.
zhannawk [14.2K]

Answer:

173 and 174

Step-by-step explanation:

Divide 347 by 2.

You get 173.5.

So, we can make the conclusion 173.5•2=347.

That is also equivalent to 173.5+173.5=347.

Subtract .5 from the first 173.5 and add it to the second 173.5, you can have

173+174=347.

So, the two consecutive integers 173 and 174 add up to 347.

6 0
3 years ago
Find the area of the rectangle. 8 cm 16 cm​
Stells [14]
128 cm

bc 16 times 6 is 128
8 0
3 years ago
Read 2 more answers
Solve for x. <br> .<br> .<br> .<br> .<br> .<br> .
otez555 [7]

Answer:

X=7

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3 0
3 years ago
Please don't waste my add a random answer if you don't know it don't answer.
love history [14]
So basically are doing keep change flip of ((x^2)/(x-1))/((3x^2)/(x+4))
keep ((x^2)/(x-1)) change the division symbol (/) to a multiplication symbol (*) and flip the denominator ((3x^2)/(x+4)) to ((x+4)/(3x^2))
now we are multiplying ((x^2)/(x-1)) by ((x+4)/(3x^2)). 
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multiply the numerators and then multiply the denominators to get 
((x^3)+(4x^2))/((3x^3)-(3x^2))
let's now extract x^2 from the numerator and 3x^2 from the denominator to get ((x^2)(x+4))/((3x^2)(x-1)
now we can simplify it down to (x/3)((x+4)/(x-1))
5 0
3 years ago
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