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aliina [53]
4 years ago
10

In a poll of Mr. Briggs's math class, 67% of the students say that math is their favorite academic subject. The editor of the sc

hool paper is in the class, and he wants to write an article for the paper saying that math is the most popular subject at the school.
A. Explain why this is not a valid conclusion

B. Suggest a better method of determining what subject is most popular
Mathematics
2 answers:
lesya692 [45]4 years ago
7 0

Answer:

this would not not be a valid conclusion because only that class was included In the poll not the entire school. Another method to determine the most popular subject is to include every class(the entire school)in the poll

madreJ [45]4 years ago
7 0

Answer:

1) biased sample

2) random sampling

Step-by-step explanation:

Since the results are based on feedback of students in only one class, it's not a good representative of the entire student body.

Also, since it's a math class there will be a bias.

Better method would be randomly selecting students from the entire school students list and take their feedback

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4 years ago
P(x)=x^3+2x^2-4x-8 how do you factor this polynomial function
Wewaii [24]
<h2>Steps:</h2>

So for this, I will be factoring by grouping. Firstly, factor x³ + 2x² and -4x - 8 separately. Make sure that they have the same quantity inside of the parentheses:

p(x)=x^2(x+2)-4(x+2)

Now we can rewrite it as:

p(x)=(x^2-4)(x+2)

However, we aren't finished factoring yet. The first factor, x² - 4, can be factored further using the difference of squares. The difference of squares goes by the formula here: x^2-y^2=(x+y)(x-y) . In this case:

x^2-4=(x+2)(x-2)\\p(x)=(x+2)(x-2)(x+2)

<h2>Answer:</h2>

<u>In short, the answer is p(x)=(x+2)(x-2)(x+2)\ \textsf{OR}\ p(x)=(x-2)(x+2)^2</u>

3 0
3 years ago
−7 + 3(8n − 8) = 8(7 + 3n) please show work
stepladder [879]

Answer:

Step 1: Simplify both sides of the equation.

−7+3(8n−8)=8(7+3n)

−7+(3)(8n)+(3)(−8)=(8)(7)+(8)(3n)(Distribute)

−7+24n+−24=56+24n

(24n)+(−7+−24)=24n+56(Combine Like Terms)

24n+−31=24n+56

24n−31=24n+56

Step 2: Subtract 24n from both sides.

24n−31−24n=24n+56−24n

−31=56

Step 3: Add 31 to both sides.

−31+31=56+31

0=87

Answer:

There are no solutions.

Step-by-step explanation:

3 0
3 years ago
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8 0
4 years ago
What is the slope.of the line passing points (1, -5) and (4, 1)
Ghella [55]

Answer:

\huge{\boxed{\sf{ 2 }}}

Step-by-step explanation:

Let the points be A and B

A ( 1 , -5 ) \longrightarrow ( x1 , y1 )

B ( 4 , 1 ) \longrightarrow ( x2 , y2 )

Finding the slope :

Slope = \frac{y2-y1}{x2-x1}

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Hope I helped!

Best regards!

~TheAnimeGirl

7 0
3 years ago
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