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zmey [24]
2 years ago
12

I need help with 63!!!! I’ll give beainliest if you can get it right!!! I included 61 to help with it!!

Advanced Placement (AP)
1 answer:
Serggg [28]2 years ago
4 0

Answer:

a

Explanation:

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if you want to test the hypothesis that sandwiches that contain butter will attract more ants than sandwiches that do not contai
Mandarinka [93]

Answer:

independent samples because it would be easier to test how many ants would come

Explanation:

6 0
2 years ago
Solve the following systems of 3-variable linear equations.​
Zina [86]

Answer:

x = 9/25, y = 7/25, z = 4/25

Explanation:

step 1: solve for y in first equation to use substitution

y = -2x + 1

step 2: insert into second equation to eliminate y variable and work with two variables

3(-2x+1) + z = 1 (now distribute)

-6x + 3 + z = 1 (bring over the -3)

-6x + z = -2

step 3: now left with -6x + z = -2 and x + 4z = 1, so eliminate z

-6x + z = -2 (multiply by 4)

4(-6x + z = -2)

-24x + 4z = -8

-

x + 4z = 1 (brought down third equation)

-25x = -9

x = 9/25

then just plug in x into the third equation to solve for z, followed by plugging it into the first equation to solve for y. you should end with y = 7/25 and z = 4/25

6 0
2 years ago
Students in a high school statistics class responded to a survey designed by their teacher. One of the survey questions was “How
maria [59]

The proportion of students that got the recommended amount of sleep is 0.179.

<h3>What is a proportion?</h3>

A proportion can be defined as an expression which is typically used to represent (indicate) the equality of two (2) ratios. This ultimately implies that, proportions can be used to establish that two (2) ratios are equivalent and solve for all unknown quantities.

<h3>How to calculate proportion of students that got the recommended amount of sleep?</h3>

Since the total number of students in this class is 28, we would develop an expression to relate the number of students that sleep at least for 5 hours per night:

Proportion = 5/28

Proportion = 0.179.

Read more on proportions here: brainly.com/question/870035

#SPJ1

Complete Question:

Students in a high school statistics class responded to a survey designed by their teacher. One of the survey questions was “How much sleep did you get last night?” Here is a dotplot of the data: Experts recommend that high school students sleep at least  per night. What proportion of students in this class got the recommended amount of sleep? Amount of sleep (h) (Round your answer to three decimal places.)

7 0
1 year ago
42. What is the source of the dispute between Canada, Russia, Norway, Denmark, and the United States over political boundaries i
sergejj [24]

Answer:

"she" is back (by she i mean the person who pinned hazbin)

Explanation:

*starts breathing quikly* w-what if she h-hurts him

6 0
2 years ago
AP PSYCHOLOGY: How do principles of classical conditioning work to create learning?
inysia [295]
Conditioning creates the brain's pattern recognition which makes it easier or harder. Abusive conditioning makes recognizing kind/nonviolent much more difficult, etc.
5 0
3 years ago
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