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Ber [7]
3 years ago
9

Which of the following is a random sample? *

Mathematics
1 answer:
Lynna [10]3 years ago
6 0

Answer:

C.

A teacher put the names of students in a hat and pulled out 10.

Step-by-step explanation:

All the other answers had some factor which would cause the answer to lean a certain way. For example, for answer D, Rebecca sent an email, which can be only sent using the internet, to ask how long people are on the internet. All the people that got the email probably use the internet longer than an average person does, making the answer, biased.

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PLEASE HELP ASAP! THANKS FOR HELPING IF U HELP
Sphinxa [80]

Answer:

1st question: false

2nd question: true

3rd question: false

6 0
2 years ago
Identify the parts of the following algebraic expression.
NARA [144]
The correct answer is y/3+5
4 0
3 years ago
A quadrilateral has vertices A(3, 5), B(2, 0), C(7, 0), and D(8, 5). Which statement about the quadrilateral is true?
Aleksandr-060686 [28]

Answer: A quadrilateral has vertices A(3, 5), B(2, 0), C(7, 0), and D(8, 5). Find:

You can see that vectors and This means that opposite sides are parallel and option B is false.

Find the lengths of all sides:

As you can see the lengths of opposite sides are equal, but all lengths are not equal. Therefore, the last option D is false.

Now check whether angles A and B are perpendicular:

The dot products are not equal to zero, then angles A and B are nor right. This means that option C is false and option A is correct (ABCD is a parallelogram with non-perpendicular adjacent sides

AKA your correct awnser choice is A :)✨

5 0
3 years ago
What value for x makes the equation true?
fgiga [73]

Since we already have 3^7 you should know that 3 times 3 is 9. Here is how I would simplify it.

3^7 times 3^4 times 3^3

You should add all the exponents and get

3^14

27 is basically 3 times 3 times 3 which is why I chose to put 27 that way

8 0
3 years ago
2.5 + 3(5-2.1p) = -13.37
EastWind [94]

Answer:

2.5 + 3(5-2.1p) = -13.37

2.5+15-6.3p=-13.37

17.5-6.3p=-13.37

-6.3p=-30.87

p=4.9

hope this helps

have a good day :)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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