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lorasvet [3.4K]
3 years ago
13

PLEASE HELP !! ILL GIVE BRAINLIEST !! 100 POINTS

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
7 0

Answer:

OPTION C,(<XWT &<VYW)

EXCEPT IT ALL OPTIONS ARE WRONG..

nlexa [21]3 years ago
3 0

Answer:

third option

Step-by-step explanation:

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A box contains 3 coins, one fair, one weighted with a 2 3 chance of coming up heads, and one weighted with a 2 3 chance of comin
ddd [48]

Answer:

The probability that we have a fair coin is 0.2717

Step-by-step explanation:

Let Ci be the event that the coin i is used for while we let i = 1,2,3 (representing the three coin)

We also let H be the event that the coin which is flipped lands (which is head)

Therefore, the problem arise:

That:  P(H/C1) = 1/2.............fair coin

          p(H/C2) = 2/3..........Chance of head

          p(H/C3) = 2/3............Chance of tail

Now, noting that the coin was picked at random,

We have, : p(Ci) = P(C1) = P(C2) = P(C3) = 1/3

We can then say that or calculate thus:

P( C2 | H ) = P (H ∩ C2) ÷ P(H)

Where P (H ∩ C2) means the probability of event intersection

= P(H ∩ C2) ÷ P(H ∩ C1) + P(H ∩ C2) + P(H ∩ C3)

= P(H | C2) P(C2) ÷ P(H | C1) P(C1) + P(H | C2) P(C2) + P(H | C3) P(C3)

= (1 / 2) (1 / 3) ÷  (1/2)(1/3) + (2/3)(1/3) + (2/3) (1/3)

0.5 × 0.3 ÷ (0.5 × 0.3) + (0.67 × 0.3) + (0.67 × 0.3)

0.15 ÷ 0.15 + 0.201 + 0.201

=0.15 / 0.552

= 0.2717

7 0
3 years ago
Find the midpoint of the segment formed by the points D(8, 6) and E(4, 10).
bixtya [17]
D (8, 6)
E (4, 10)

x_{midpoint} =  \cfrac{x_D+x_E}{2} = \cfrac{8+4}{2}=6 \\  \\  y_{midpoint} =  \cfrac{y_D+y_E}{2} = \cfrac{6+10}{2}=8&#10;

Answer: B. (6, 8)
6 0
3 years ago
Find the equation of a line that contains the points (-8, 7) and (-8, -2). Please help!!!
FrozenT [24]

Answer:

x = -8

Step-by-step explanation:

(-8, 7) and (-8, -2)

m=(y2-y1)/(x2-x1)

m=(-2-7)/(-8+8)

m=(-9)/0

m = undefined slope or no slope

x = -8

4 0
2 years ago
Read the proposition and the implication shown below. "If the lights are off, there is no one inside." Which statement is a cont
charle [14.2K]
The contrapositive switches the hypothesis and the conclusion and negates both in this form:
Statement: If A, then B
Contrapositive: If not B, then not A. 

In this case, the statement is: 
<span> "If the lights are off, there is no one inside."
Contrapositive:
If there is someone inside, the lights are on. </span>
4 0
3 years ago
What type of angle is created by the intersection of two perpendicular lines rats or line segment
zmey [24]

It should be a right angle (90º).

6 0
3 years ago
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