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satela [25.4K]
3 years ago
14

A pharmaceutical company prefers experimental studies to conducting surveys or observational studies. what is most likely the re

ason for this preference?
Mathematics
2 answers:
never [62]3 years ago
8 0
Pharmaceutical companies prefers experimental studies to conducting surveys and observational studies because companies can manipulate or suggest methods easily to have good outcomes and they are able to directly observe the results. Experimental studies is a type of study in which a procedure and method is intentionally introduced.
tekilochka [14]3 years ago
3 0

Answer:

A.

Observational studies and surveys usually do not provide results that are as accurate as experimental results.


Step-by-step explanation:


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On a coordinate plane, a circle has a center at (8, 9). Concentric circles are circles with the same center but different radii.
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Answer:

Correct options:

(x – 8)² + (y – 9)² = 3

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Step-by-step explanation:

If the circle has a center at (8,9), the equation for this circle is:

(x-8)^2 + (y - 9)^2 = r^2

All concentric circles have the same center, so their equations need to have the same left side of the equation above.

-> x2 + y2 = 25

This circle has a center at (0,0), so it's not concentric to our circle.

-> (x – 8)² + (y – 9)² = 3

This circle has a center at (8,9), so it's concentric to our circle.

-> (x – 8)² + (y – 9)² = 14

This circle has a center at (8,9), so it's concentric to our circle.

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This circle has a center at (8,-9), so it's not concentric to our circle.

-> (x + 8)² + (y + 9)² = 25

This circle has a center at (-8,-9), so it's not concentric to our circle.

-> (x + 9)² + (y + 8)² = 3

This circle has a center at (-8,-9), so it's not concentric to our circle.

Correct options:

(x – 8)² + (y – 9)² = 3

(x – 8)² + (y – 9)² = 14

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Answer:

A=592

Step-by-step explanation:

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First you take the y of the second point and subtract it from the y of the first point. -11 - 4. That leaves you with -15. Then you take the x of the second point and subtract it from the x of the first point. that leaves you with 0. Then you put y over x. You then have -1`5/0. That is undefined.

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Answer: you need a x and y axis to get this answer

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