<span>A. an observational study, since they were not assigned to their groups.</span>
Answer:
See below.
Step-by-step explanation:
3(3x−1)=6x−3
9x-3=6x-3
+3 +3
9x=6x
-6x -6x
3x=0
/3 /3
x=0
There are no solutions.
-hope it helps
291.87 is a rational number.
Rational numbers can be expressed by a ratio of two integers; in other words, rational numbers can be written as a whole number, fraction, or percentage. An irrational number cannot be expressed this way. Examples of irrational numbers include √2 and π. Examples of rational numbers include 3/4, 48%, and 58.09.
Hope this helps! :)
X= money Jane had initially
650=x-135
x=785
Answer: Jane initially had $785 dollars in her account
Answer:
Proportion: 1/3=3/x
Step-by-step explanation:
The "1/3" proportion is telling us how the scale measurement relates to the real measurement.
The "3/x" describes the length of side B.
Now it is easy to figure out the answer! :D
Hope it helped!