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sveticcg [70]
3 years ago
5

A placebo is a substance that should elicit no positive response in an experimental subject.

Mathematics
1 answer:
adelina 88 [10]3 years ago
7 0

Answer:

  A)  True

Step-by-step explanation:

In an experiment that has the purpose of testing the efficacy of a procedure or drug, comparison is made against the efficacy of a placebo, a procedure or drug that is <em>intended to have no effect whatever</em>.

__

Famously, a placebo is often found to be nearly as effective (or even more effective) than the procedure or drug on trial. This effect is known as "the placebo effect."

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Simplify (x^6)^2 • x^3
givi [52]

Answer:

x^15

Step-by-step explanation:

Recall these rules of exponents:

(a^m)^n = a^mn

a^m • a^n = a^(m + n)

(x^6)² • x³ = x^(2 • 6) • x³ = x^12 • x³ = x^(12 + 3) = x^15

8 0
2 years ago
Find the equation of the graphed line.
Alex_Xolod [135]

example: the line is y = ax + b

The line go through 2 points ( -4 ; 0 ) and ( 0 ; -2 )

So:

  • -2 = 0a + b => b = -2
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The line is y = -1/2x - 2 ( i'm not sure)

Answer: a

Ok done. Thank to me :>

5 0
3 years ago
Two numbers have these properties
EastWind [94]

Step-by-step explanation:

yea the answer us 8dj but u jejrjfjfjdjdjjfjfjcj

8 0
3 years ago
What is i^84? a) -i b) i c) -1 d) 1
mariarad [96]

Answer:

D) 1

Step-by-step explanation:

When you start raising i to certain powers, you begin to notice a pattern.

i^1=i \\\\i^2=-1 \\\\i^3=-i \\\\i^4=1 \\\\i^5=i \\\\ i^6=-1 \\\\ i^7=-i \\\\i^8= 1

This cycle repeats forever. Since 84 is a multiple of 4, i^84 must be 1. Hope this helps!

7 0
4 years ago
Y= (x + 3/2) ^2 - 1/4<br> Convert to standard form
ioda

Answer:

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Step-by-step explanation:

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