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Luda [366]
2 years ago
13

The theater director offered every member of the drama one vote for which play they preferred to perform. The director found tha

t 3 5 % 35% voted for The Oddems Family, that 5 7 % 57% voted for Thirteenth Night, and that 8 % 8% did not vote. In this group, what is the probability this group voted for "Oddems Family" or "Thirteenth Night"
Mathematics
1 answer:
worty [1.4K]2 years ago
3 0

Answer:

0.92 is the required probability.

Step-by-step explanation:

We are given the following in the question:

Percentage who voted for The Oddems Family = 35%

P(A) = 0.35

Percentage who voted for The Thirteenth Night = 57%

P(B) = 0.57

Percentage who did not vote = 8%

P(A^C\cap B^C) = 0.08

We have to find the probability that the group voted for "Oddems Family" or "Thirteenth Night".

Thus, we have to evaluate

P(A\cup B)

This can be done in the following manner:

P(A^C\cap B^C) = 0.08\\P(A\cup B)^C = 0.08\\P(A\cup B) = 1-0.08\\P(A\cup B) = 0.92

Thus, 0.92 is the probability  that the group voted for "Oddems Family" or "Thirteenth Night".

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Which graph represents the hyperbola = 1?
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Answer:

131

Step-by-step explanation:

We have to find the graph of the hyperbola whose equation is given as:.We know that the general equation of the hyperbola is given by:where the focus of the hyperbola are at the points:(a,0) and (-a,0).Hence, the focus of the given hyperbola are the points:(3,0) and (-3,0).The figure of the hyperbola is attached to the figure.

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2 years ago
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5y-6=3y-20 how do i solve this problem
rusak2 [61]
Minus 3y both sides
2y-6=-20
add 6 to both sids
2y=-14
divide 2
y=-7
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2 years ago
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A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed, t
maksim [4K]

Answer:

Boat traveled 553.24 feet towards the lighthouse.

Step-by-step explanation:

In the figure attached AB is the light house of height 200 feet.

Angle of depression of the boat from the top of a lighthouse = angle of elevation of the lighthouse from the boat = 14°52'

so 1' = \frac{1}{60} degree

so angle of elevation at point C = 14 + \frac{52}{60}

So angle of elevation from C = (14 + 0.87) = 14.87°

Similarly, when boat arrives at point D angle of elevation = 45°10' = 45 + \frac{10}{60} = 45.17°

Now we have to calculate the distance CD, traveled by the boat.

In ΔABC

tan14.87 = \frac{200}{BC}

0.2655 =  \frac{200}{BC}

BC = \frac{200}{0.26552}

BC = 753.239 feet

Similarly in ΔABD

tan45.17 = \frac{200}{BD}

1 = \frac{200}{BD}

BD = 200 feet

So distance CD = BC - BD

CD = 753.239 - 200

     = 553.24 feet

Therefore, Boat traveled 553.24 feet towards the lighthouse.

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2 years ago
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What is the solution to this system of equations? Y= 2x - 3.5 x - 2y = -14
goldfiish [28.3K]

Answer:

x=7

y=10.5


Step-by-step explanation:

1. You can apply the method of substitution, as you can see below:

- Substitute y=2x-3.5 into the other equation and solve fo x:

x-2(2x-3.5)=-14\\x-4x+7=-14\\x=7

- Substitute the value of x obtain into the first equation, then the value of y is:

y=2(7)-3.5\\y=10.5


6 0
2 years ago
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To estimate the height of a building, a stone is dropped from the top of the building into a pool of water at ground level. The
kupik [55]

Answer:

The height of the building is 153.664 meter.

Step-by-step explanation:

Consider the provided function.

s(t) = 4.9t^2 + v_0 t + s_0

Here t represents the time v₀ represents the initial velocity, s₀ represents the initial height and s(t) represents the height after t seconds.

It is given that the splash is seen 5.6 seconds after the stone is dropped.

That means after 5.6 seconds height s(t) = 0, Also the initial velocity of the stone is 0.

Substitute respective values in the above function.

0 = 4.9(5.6)^2 +5.6(0)+ s_0

0 = 4.9(31.36)+ s_0

s_0=-153.664

As height can't be a negative number so the value of s₀ is 153.664.

Hence, the height of the building is 153.664 meter.

7 0
2 years ago
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