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Arada [10]
2 years ago
5

1. Conrad wants to conduct a survey of students at his middle school to

Mathematics
2 answers:
serg [7]2 years ago
3 0

Answer:

Asking 50 people entering the cafeteria and Asking 120 randomly-selected students.

Step-by-step explanation:

Asking 10 students from a 7th grade class is not impartial as all subjects are from a singular small group inside of the student body as a whole.

Otrada [13]2 years ago
3 0
120 took the test got a 80
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an elevator started at the first floor and went up 18 floors. it then came down 11 floors and went back up 16.at what floor was
zzz [600]
Started at first floor
went up 18 floors, so now we are at 1+18 or 19th floor
then cam down 11 floors, so now we are at 19-11 or 8th floor
then went up 16, so now at 16+8 or 24th floor

it stopped at 24th floor
4 0
2 years ago
Which of the following sets of numbers could be the lengths of the sides of a triangle? A. 3 ft, 6 ft, 9 ft B. 3 ft, 5 ft, 7 ft
Whitepunk [10]
Answer:
<span>B. 3 ft, 5 ft and 7 ft
</span>
Explanation:
In any triangle, the sum of any two sides must be greater that the third one.

Therefore, to know if the given sides represent a triangle or not, all what we will do is add the two short sides and compare the result to the largest one.
We would have 3 options:
sum of short sides > longest side ......> It is a triangle
sum of short sides < longest side ......> It is not a triangle
sum of short sides = longest sides ....> It is not a triangle

Now, for the given:
1- Option A:
sum of short sides = 3 + 6 = 9 ft which is equal to the longest side
This option is incorrect

2- Option B:
sum of short sides = 3 + 5 = 8 ft which is greater than the longest side
This option is correct

3- Option C:
sum of short sides = 3 + 6 = 9 ft which is less than the longest side
This option is incorrect

4- Option D:
sum of short sides = 3 + 9 = 12 ft which is less than the longest side
This option is incorrect

Based on the above, the only correct option is B.

Hope this helps :)
4 0
3 years ago
Help please !!!!! Math 3
Pachacha [2.7K]

Answer:

A

Step-by-step explanation:

The degree of a polynomial is determined by the largest exponent in the terms of the polynomial. The leading coefficient is the coefficient of the term with the largest exponent.

Given

f(x) = 2x³ + 2x² - \frac{1}{x}

The term - \frac{1}{x} means that f(x) is not a polynomial

Since terms with division by a variable are not allowed.

3 0
3 years ago
Can any help me with these
r-ruslan [8.4K]
I can only clearly see #5.

A mile has 5,280 feet.

Divide 18,472 by 5,280.
18,472 / 5,280 = 3.5

18,472 feet is about 3.5 miles.
4 0
3 years ago
Read 2 more answers
When a boat travels 75m from the shore, the boat drops an anchor that reaches for
slavikrds [6]

Answer:

We often use everyday definitions of the word "energy," but which statement

best describes what energy is in science?

A. the ability to carry things a long distance

B. the result of eating a lot of carbohydrates

C. the amount of time something can keep moving without rest

D. the ability to do work or cause change

Step-by-step explanation:

5 0
3 years ago
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