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Ivanshal [37]
3 years ago
9

PLEASE HELP ME ASAP! Please show your work.

Mathematics
1 answer:
Marysya12 [62]3 years ago
6 0
Its 18....................................


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You have two biased coins. Coin A comes up heads with probability 0.1. Coin B comes up heads with probability 0.6.However, you a
Andrews [41]

Answer:

The probability that our guess is correct = 0.857.

Step-by-step explanation:

The given question is based on A Conditional Probability with Biased Coins.

Given data:

P(Head | A) = 0.1

P(Head | B) = 0.6

<u>By using Bayes' theorem:</u>

P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}

We know that P(B) = 0.5 = P(A), because coins A and B are equally likely to be picked.

Now,

P(Head) = P(A) × P(head | A) + P(B) × P(Head | B)

By putting the value, we get

P(Head) = 0.5 × 0.1 + 0.5 × 0.6

P(Head) = 0.35

Now put this value in P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)} , we get

P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}

P(B|Head) = 0.6 \times \frac{0.5}{0.35}

P(B|Head) = 0.857

Similarly.

P(A|Head) = 0.857

Hence, the probability that our guess is correct = 0.857.

7 0
3 years ago
A support wire is attached to the top of a tower that is 65 feet tall as shown. If the wire makes an angle of 34 degree with the
Maru [420]
Answer:
length of wire = 116 ft

Explanation:
The attached image shows a diagram on the scenario given.

Now, we can note that the string forms a right-angled triangle with the tower and the ground. This means that special trig functions can be applied.
These functions are as follows:
sin θ = opposite / hypotenuse
cos θ = adjacent / hypotenuse
tan θ = opposite / adjacent

Now, from the given, we can find that:
θ = 34°
opposite is the tower = 65 ft
hypotenuse is the string length that we want to find

Substitute with the givens in the sin function to get the length of string as follows:
sin (34) = 65 / string
string = 65 / sin(34)
string = 116.2 which is approximately 116 ft

Hope this helps :)

8 0
3 years ago
Raisins, almonds, and sunflower seeds are sold together in packages of 350 g.
frosja888 [35]

Answer:

124.9g approximately 125g

Step-by-step explanation:

Sum of total ratio= 5+7+2= 14

Mass of Raisins = 5/14 x 350 = 125g

Mass of almonds = 7/12 x 350 = 175g

Mass of Sunflower = 2/12 x 350 = 50g

Total package = 125 + 175 + 50 = 350g.

You're Welcome

3 0
3 years ago
Please help with this question
8090 [49]
The answer is 103 it's false
3 0
3 years ago
An education researcher randomly selected 48 middle schools from across the country and interviews every teacher of the selected
swat32

Answer:

graphs

Step-by-step explanation:

the answer is graph

it can be any graphs (pie chart, bar graph)

the question doesn't say about the data collected

8 0
3 years ago
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