I’m struggling with my delta math
1 answer:
Answer:
5.8
Step-by-step explanation:
To find x use SohCahToa (sin, cos, tan). In this case, we are given the adjacent, and we are looking for the opposite of the angle. This means that tangent should be used. The equation should be set up as . Then, to isolate the variable multiply both sides by 3.6. This means that the new equation 3.6tan(58)=x. Finally, plug this into a calculator to solve. The final answer is 5.8.
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Answer:
0.3125 = 31.25% probability that it is not ideal.
Step-by-step explanation:
For each children, there are only two possible outcomes. Either it is a girl, or they are not. The probability of a child being a girl is independent of any other child. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
0.5 probability of a children being a girl:
This means that
If you randomly select a Happyville family that has four children, what is the probability that it is not ideal?
Not ideal is less than two girls, so this is P(X < 2).
Four children means that . So
0.3125 = 31.25% probability that it is not ideal.