A) control group, they did not also survey 10 other ppl who took a placebo
Answer:
The first term indicates that the 14 student council members each handed out 22 flyers per additional minute of the fair. The second term indicates that the 14 members each handed out 25 flyers during the first minute of the fair.
Step-by-step explanation:
Given : The expression below represents the number of flyers handed out at the school fair by 14 members of the student council, where x is the number of minutes after the first minute of the fair. Assume that each student council member handed out the same number of flyers throughout the fair.
Expression : 14(22x) + 350
To Find: Interpret the meaning of each term in the expression.
Solution:
14 denotes the number of members
x is the number of minutes after the first minute of the fair
22 denotes each handed out 22 flyers per additional minute of the fair.
denotes each handed out 25 flyers during the first minute of the fair.
So, option A is true .
The first term indicates that the 14 student council members each handed out 22 flyers per additional minute of the fair. The second term indicates that the 14 members each handed out 25 flyers during the first minute of the fair.
Answer:
82.5% Americans owned a TV also owned a DVD player .
Step-by-step explanation:
Formula

As given
Of the 114.2 million Americans who owned a TV, 94.2 million also owned a DVD player.
Here
Part value = 94.2 million
Total value = 114.2 million
Putting all the values in the formula



Percentage = 82.5 %
Therefore 82.5% Americans owned a TV also owned a DVD player .
Speed = distance/time
Speed = 90 meters/45 seconds
Simplify the above answer
Speed = 2 meters/second
You can double-check this: You walk 2 meters per second, so multiply 2 by 45 (that is how many seconds), and you get 90.
Answer:

Step-by-step explanation:
P, A, and R are collinear.
PR = 54


To solve for the numerical length of PR, let's generate an equation to find the value of x.
According to the segment addition postulate:

(substitution)
Solve for x

Combine like terms


Add 2 to both sides


Divide both sides by 7



Plug in the value of x into the equation

