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Nesterboy [21]
3 years ago
12

Hello please help thanks i’ll give brainliest!

Mathematics
1 answer:
erastovalidia [21]3 years ago
8 0

Answer: A

Step-by-step explanation: Hope this help :D

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Susan Sound predicts that students will learn most effectively with a constant background sound, as opposed to an unpredictable
alukav5142 [94]

Answer:

An ANOVA test

Step-by-step explanation:

You will use the ANOVA test, which is a test that compares the means of more than 2 samples.  Since the teacher used 3 test groups, she would have to use this test if she wanted to do a hypothesis test to determine if the means are equal.  

*This test only tells us if the means are equal, it won't say which is greater than the other.  You would have to do 3 individual hypothesis tests comparing 2 means at a time in order to determine that.

8 0
2 years ago
Hey how to do this and what the answer​
frez [133]

Answer:

5x + y - 4 = 0

Step-by-step explanation:

When we are given two points and are asked to find the equation of the line we use the two - point form.

Two - point form: $ \frac{y - y_1}{y_2 - y_1} = \frac{x - x_1}{x_2 - x_1} $.

where: $ (x_1,y_1) $ and $ (x_2,y_2) $ are the two points on the line.

Given the two points are: (5,21) and (-5,-29).

Substituting in the two point form:

⇒  $ \frac{y - 21}{-29 - 21} = \frac{x - 5}{-5 -5} $

$ \implies \frac{y - 21}{-50} = \frac{x - 5}{-10} $

$ \implies y - 21 = 5x - 25 $

⇒                              5x + y - 4 = 0

8 0
3 years ago
What is the slope intercept form of the equation 12x-4y=-20 y=3x+5 y=-3x-5 y=12x-20 y=20y-12x
lyudmila [28]

Answer:

3x+y=16

x+6y=5

6x+2y=8

Step-by-step explanation:

8 0
3 years ago
..the cat and the hat to the pat in the rug on the hug
swat32

Answer:

uh get it i guess?

Step-by-step explanation:

yes

8 0
2 years ago
Which expression is equivalent to (8x – 20) + (-4x + 12)?
lana66690 [7]

Answer:

B. 4x-8

Step-by-step explanation:

6 0
2 years ago
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