60 people like Ronaldo, and 24 of those 60 people also like Messi.
60-24=36
36 people like Ronaldo only.
X^15 times y^5.
When you multiply numbers with the same base, you simply add the exponents.
From triangle AED we can find the length of a side of ABCD
AD=(4^2+4^2)^(1/2) (pythagorean theoerem)
AD=32^(1/2)
For similar reasons as applied to the triangle AC=(2AD^2)^(1/2)
AC=(2*32)^(1/2)
AC=64^(1/2)
AC=8
Option (a) Sample
Sample is the research that analyzes a portion of an entire population.
A sample is a condensed, controllable portion of a bigger group. It is a subgroup of people with traits from a wider population. When populations are too big for a statistical test to include every potential participant or observation, samples are utilized.
By permitting researchers to obtain the same results from a sample as they would from the population, sampling helps researchers save money. Non-random sampling is much less expensive than random sampling since it reduces the expense of locating participants and obtaining their data.
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