90
-12. The newsstand had 90 copies at the beginning of the day
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78
Answer:
The probability of SFS and SSF are same, i.e. P (SFS) = P (SSF) = 0.1311.
Step-by-step explanation:
The probability of a component passing the test is, P (S) = 0.79.
The probability that a component fails the test is, P (F) = 1 - 0.79 = 0.21.
Three components are sampled.
Compute the probability of the test result as SFS as follows:
P (SFS) = P (S) × P (F) × P (S)
![=0.79\times0.21\times0.79\\=0.131061\\\approx0.1311](https://tex.z-dn.net/?f=%3D0.79%5Ctimes0.21%5Ctimes0.79%5C%5C%3D0.131061%5C%5C%5Capprox0.1311)
Compute the probability of the test result as SSF as follows:
P (SSF) = P (S) × P (S) × P (F)
![=0.79\times0.79\times0.21\\=0.131061\\\approx0.1311](https://tex.z-dn.net/?f=%3D0.79%5Ctimes0.79%5Ctimes0.21%5C%5C%3D0.131061%5C%5C%5Capprox0.1311)
Thus, the probability of SFS and SSF are same, i.e. P (SFS) = P (SSF) = 0.1311.
Answer:
c= 18.4
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
cos theta = adj/ hyp
cos theta = a/c
cos 57 = 10/c
Multiply each side by c
c cos 57 =10
Divide each side by cos 57
c = 10/cos 57
c=18.36078459
Rounding to the nearest tenth
c= 18.4
Answer:
In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function. Functions were originally the idealization of how a varying quantity depends on another quantity.
Step-by-step explanation: