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Roman55 [17]
3 years ago
10

A double-blind experiment is used to increase the placebo effect. True or false

Mathematics
1 answer:
Alexus [3.1K]3 years ago
4 0

Answer:

True.

Step-by-step explanation:

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Which expression can be simplified to find the slope of the trend line in the scatterplot?
Nutka1998 [239]

Answer:  \frac{35-21}{8-4}

Step-by-step explanation:

The slope of a line equals to the difference between points' y-coordinates divided by the difference between their x-coordinates.

That is, if (x_1,y_1) and (x_2,y_2) are the point of a line,

Then the slope of the line is,

m=\frac{y_2-y_1}{x_2-x_1}

By the given diagram,

x_1=4, y_1=21, x_2=8 and y_2=35

Thus, the slope of the given line

= \frac{35-21}{8-4}

⇒ Fourth option is correct.

3 0
3 years ago
Read 2 more answers
Pi + pi/2 bằng bao nhiêu
ki77a [65]
3/2pi nha má, bấm máy đi
8 0
3 years ago
Write your answer without using negative exponents (u^4)^-7
umka21 [38]

Answer:

<h2>\frac{1}{ {u}^{28} }</h2>

solution,

{(u}^{4} \: )^{ - 7}  \\   =  {(u)}^{4 \times ( - 7)}  \\  =  {(u)}^{ - 28}  \\  =  \frac{1}{ {u}^{28} }

Hope this helps...

Good luck on your assignment..

7 0
3 years ago
Write an equation to solve the problem.
salantis [7]

Answer:

5 + 2m = 23

Step-by-step explanation:

This equation can be solved as follows:

5 + 2m = 23

2m = 23 - 5

m = 18/2

m = 9 months

5 0
3 years ago
Please help. I only need parts a and b.
Alex

Answer:

oI know that for a they are pretty much the same shape im not sure how else to desribe it sorry

Step-by-step explanation:

7 0
2 years ago
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