Answer:
Mr. Rodriguez made a reasonable inference. His sampling was random, nonbiased, and reasonably large compared to the school population. 12 is 20% of 60.
Step-by-step explanation:
the ratio in the sample is 12/60, or 0.2
Answer:
The fair assumption was made by Mr. Rodriguez. His surveys were random, non-biased and very large according to the population of the schools. Of 60, 12 is 20%.
Im sad
(x+4)(x−9)=0 completing the square
square root property
4x² = 20
zero product property
Answer:
i) Zero product property
ii) Square root property
Step-by-step explanation:
(x + 4)(x -9) = 0
Here we are equating each factor equal to zero and find the solutions.
Therefore it is Zero product property.
4x^2 = 20
To find the value of x, we take the square root on both sides.
So it is square root property.
Hope this will helpful.
Thank you.
Answer:
The person above be is correct
Step-by-step explanation:
Sin (angle) = opposite leg / hypotenuse
Sin(x) = 2.1/4
x = arcsin(21./4)
x = 31.7 degrees