2 years ago

What is a placebo and why is it important in an experiment to test the effectiveness of a drug

Mathematics

1 answer:

Sonbull [250]2 years ago

5 0

Answer:

A placebo is a useless substance that takes the place of an actual drug

Step-by-step explanation:

This is to test to see if the drug actually does anything, or if the patients are really just deceived by their imagination

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dedylja [7]

The expression would be (5*6)+(5*6)=x
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2 years ago

Solve this question

love history [14]

Answer:

$\frac{4x - 11}{2} \leqslant 3x - 3 < 4 \\ \\ = > \frac{4x - 11}{2} \leqslant 3x - 3 \: and \: 3x - 3 < 4 \\ \\ < = > 4x - 11 \leqslant 6x - 6 \: \: and \: \: 3x < 7 \\ \\ < = > 2x \geqslant - 5 \: \: and \: \: x < \frac{7}{3} \\ \\ < = > \frac{ - 5}{2} \leqslant x < \frac{7}{3}$