Answer:
C
Step-by-step explanation:
type cos(155) into a calculator
cos(155)= -0.906307787...
The best statement that could be used describe a polygon is that it is a closed plane figure with three or more sides that are straight. Thus, the correct answer is A: a closed plane figure with three or more sides that are straight.
Hope this helps! :)
Answer:
Measurement error.
Step-by-step explanation:
Measurement Error are the error when there is difference found in true value of data and measured quantity of data. This difference could be found if we are missing some data in the sample.
The error could be reduced by carefully designing the process of data collection and it´s measurement.
Measurement error are classified into two type of error:
- Random error.
- Systematic error.
Answer:
The events "Spike passes chemistry" and "Spike passes mathematics" are not independent.
The probability that he fails both subjects = 0.37
Step-by-step explanation:
The probability of Spike passing Chemistry = P(Chemistry) = 0.35
The probability of Spike passing Mathematics = P(Mathematics) = 0.40
The probability of Spike passing both Chemistry and Mathematics = P(Chemistry,Mathematics) = 0.12
For the events "Spike passes chemistry" and "Spike passes mathematics" to be independent, P(Chemistry,Mathematics) should be equal to P(Chemistry) * P(Mathematics)
But P(Chemistry) * P(Mathematics)=0.35*0.40 =0.14
So the two events are not independent.
The Probability that he passes Chemistry or Mathematics is given by P(Chemistry) + P(Mathematics) - P(Chemistry,Mathematics)
= 0.35+0.40-0.12=0.63
So the probability that he fails both subjects is the complement of this, namely (1 - 0.63) = 0.37