Answer:
A. Control group
Step-by-step explanation:
A control group is a group in an experiment or study that does not receive experimental procedure during such that it is then used as a benchmark to measure how the other tested subjects do.
An experimental group is a group in an experiment or study that receives an experimental procedure. The values of gotten from the test are recorded and the effect of independent variables on the dependent variables are determined.
Control experiment can be used to determine whether or not the customers are friendly. Experimental group will be the customers whom the waiter is extra friendly toward. The control group will be the alternate customer whom the waiter is not extra friendly toward.
To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.
Answer:7.5 Pounds of Apples With $5.00
Step-by-step explanation: You can see that each apply on the chart is 1.5 dollars. Just do 5*1.5. :)
Answer:
(8a+12a-2a)-(2b-4b)
18a-(-2b)
18(4)- -2(-2)
72-4
=68
Step-by-step explanation:
h ttps:/ / pad let. com/du stinnich olson/C arl
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Answer:
Step-by-step explanation: