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erastovalidia [21]
2 years ago
11

Use the diagram below to match the ratios below. B a A b sin B COS B tan B tan A COS A sin A​

Mathematics
1 answer:
Paha777 [63]2 years ago
8 0

Answer:

See explanation

Step-by-step explanation:

Given

The attached triangle

Required

Complete the ratios

(a) sin B

\sin(B) is calculated as:

\sin(B) = \frac{Opposite}{Hypotenuse}

\sin(B) = \frac{b}{c}

(b) cos B

\cos(B) is calculated as:

\cos(B) = \frac{Adjacent}{Hypotenuse}

\cos(B)  = \frac{a}{c}

(c) tan B

\tan(B) is calculated as:

\tan(B) = \frac{Opposite}{Adjacent}

\tan(B) = \frac{b}{a}

(d) tan A

\tan(A) is calculated as:

\tan(A)= \frac{Opposite}{Adjacent}

\tan(A) = \frac{a}{b}

(e) cos A

\cos(A) is calculated as:

\cos(A) = \frac{Adjacent}{Hypotenuse}

\cos(A) = \frac{b}{c}

(f) sin A

\ain(B) is calculated as:

\sin(B) = \frac{Opposite}{Adjacent}

\sin(B) = \frac{a}{c}

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Travelers who fail to cancel their hotel reservations when they have no intention of showing up are commonly referred to as no-s
notsponge [240]

Answer:

a) 0.0523 = 5.23% probability that at least two of the four selected will turn to be no-shows.

b) 0 is the most likely value for X.

Step-by-step explanation:

For each traveler who made a reservation, there are only two possible outcomes. Either they show up, or they do not. The probability of a traveler showing up is independent of other travelers. 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.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

No-show rate of 10%.

This means that p = 0.1

Four travelers who have made hotel reservations in this study.

This means that n = 4

a) What is the probability that at least two of the four selected will turn to be no-shows?

This is P(X \geq 2) = P(X = 2) + P(X = 3) + P(X = 4)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{4,2}.(0.1)^{2}.(0.9)^{2} = 0.0486

P(X = 3) = C_{4,3}.(0.1)^{3}.(0.9)^{1} = 0.0036

P(X = 4) = C_{4,4}.(0.1)^{4}.(0.9)^{0} = 0.0001

P(X \geq 2) = P(X = 2) + P(X = 3) + P(X = 4) = 0.0486 + 0.0036 + 0.0001 = 0.0523

0.0523 = 5.23% probability that at least two of the four selected will turn to be no-shows.

b) What is the most likely value for X?

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{4,0}.(0.1)^{0}.(0.9)^{4} = 0.6561

P(X = 1) = C_{4,1}.(0.1)^{1}.(0.9)^{3} = 0.2916

P(X = 2) = C_{4,2}.(0.1)^{2}.(0.9)^{2} = 0.0486

P(X = 3) = C_{4,3}.(0.1)^{3}.(0.9)^{1} = 0.0036

P(X = 4) = C_{4,4}.(0.1)^{4}.(0.9)^{0} = 0.0001

X = 0 has the highest probability, which means that 0 is the most likely value for X.

7 0
2 years ago
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LuckyWell [14K]
Well you just multiply 5 by 160 and get 800ft

6 0
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SVEN [57.7K]

Answer:

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Step-by-step explanation:

7 0
2 years ago
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DENIUS [597]

Answer:sin240

Step-by-step explanation:

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Sin240=(-√3)/2

So sin300 is equivalent to sin240

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yes it is greater than 2/5


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