Explanation : x = 79 marks
The marks scored by Mike on four math test are 88,91,75 and 72.
Average of marks, A = 81
Let in fifth test he scores x marks.
The formula for finding average is :
In the fifth test he scores 79 marks.
Hence, this is the required solution.
Answer:
The False statement is
Exchange gases with blood
Explanation:
Gas exchange occurs at the alveolar level which is part of the lower respiratory track
They can be found in all of those places, but are best suited to moist areas. c:
The answer is : randomization was not used in sample selection. The major difference between experimental and quasi-experimental designs is lack of randomization in sampling selection.
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