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Andru [333]
3 years ago
12

Which of the following is an advantage of an observational study over a sample survey? A)Observational studies are not dependent

on people’s responses, which may not be truthful.
B)Observational studies involve the random selection of subjects.
C)Observational studies do not manipulate variables.
D)Observational studies do not involve treatments.
Mathematics
1 answer:
Law Incorporation [45]3 years ago
3 0
I think it is B)Observational studies involve the random selection of subjects.
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Solve the inequality.<br> 4x + 3 &lt; 7 or 3x – 8 &gt; 7<br> -<br> x &lt; [?] or x &gt; [
ss7ja [257]

Answer:

4x + 3 < 7 \\ 4x + 3 - 3 < 7 - 3 \\ 4x < 4 \ \\ 4x \div 4 < 4 \div 4 \\ x < 1

3x - 8 > 7 \\ 3x - 8 + 8 > 7 + 8 \\ 3x > 15 \\ 3x \div 3 > 15 \div 3 \\ x > 5

6 0
3 years ago
Triangle ABC is translated 4 units down and 6 units right, resulting in triangle A'B'C'.
gogolik [260]

Answer:

The new coordinate of B' will be ( -1, 6)

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3 years ago
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Brady recorded the number and color of cars in the parking lot. 45% of the cars in the parking lot were white. If Brady counted
MA_775_DIABLO [31]

Answer:

180 cars

Step-by-step explanation:

Like you can see in the picture, I like to set up a proportion, so 81 over X and 45 over 100. Then, you can cross multiply, so 81 x 100 = 8100 and then divide, 8100 ÷ 45 = 180, your answer!

4 0
3 years ago
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Can you form a right triangle with the three lengths given? Why or why not? 5 cm, 12 cm, 13 cm
nordsb [41]

Yes,  I  form a right triangle with the three lengths given, because The largest side which is 13cm can be squared  and will be set to  equal to the sum of squares of smaller two side.

<h3>What is a right-angled triangle?</h3>

A  right-angled triangle serves as the  triangle having  one of its angles equal to 90 degrees.

It should be noted that the other two angles sum up to 90 degrees., hence  I  form a right triangle with the three lengths given, because The largest side which is 13cm can be squared  and will be set to  equal to the sum of squares of smaller two side.

Read more on the right triangle here:

brainly.com/question/2217700

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4 0
2 years ago
HELP ME PLEASE ON THIS
Anvisha [2.4K]

The answer is [ all real numbers ]

The domain are the input values which makes the function defined and real.

Since we don't have any constraints or any undefined points, the domain could be literally anything. Thus proves out answer.

Best of Luck!

5 0
4 years ago
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