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yan [13]
2 years ago
15

Can someone help me i will give brainlest

Mathematics
1 answer:
omeli [17]2 years ago
3 0

Answer: 6) x=8

7) I don't see a bold angle but x=8

8)116

9)64

10)x=-17

Step-by-step explanation:

equation solving and knowledge of angle stuff

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For each set of probabilities, determine whether the events A and B are independent or dependent.
lozanna [386]

Answers:

  • (a) Independent
  • (b) Dependent
  • (c) Dependent
  • (d) Independent

========================================================

Explanation:

If events A and B are independent, then the two following equations must both be true

  • P(A | B) = P(A)
  • P(B | A) = P(B)

This is because the conditional probability P(A|B) means "P(A) when B has happened". If B were to happen, then P(A) must be the same as before. In other words, event B does not affect A, and vice versa.

For part (a), we have P(B) = 1/4 and P(B|A) = 1/4 showing that P(B|A) = P(B) is true, and therefore we can say the events are independent. We don't need the info that P(A) = 1/8.

------------------------

Unlike part (a), part (b) has the answer "dependent" because P(A) = 1/8 and P(A | B) = 1/3 differ in value. Event A starts off at probability 1/8, but then event B occurring means P(A) gets increased to 1/3. The prior knowledge about B changes the chances of A. The P(B) = 1/5 is unneeded.

------------------------

If A and B were independent, then,

P(A and B) = P(A)*P(B)

However,

P(A)*P(B) = (1/4)*(1/5) = 1/20

which is not the same as P(A and B) = 1/6. Therefore the two events are dependent.

------------------------

Refer back to part (a)

P(A) = 1/4 and P(A|B) = 1/4 are identical in value, so P(A|B) = P(A) which leads to the events being independent. Whether we know event B happened or not, it does not affect the outcome of event A. P(B) = 1/9 is unneeded.

7 0
2 years ago
Ospreys are birds that catch and eat fish. An osprey dived from a height of 36 feet above the surface of a lake to a
nikitadnepr [17]

Answer:

C

Step-by-step explanation: 36 is the height. Minus 4 is 32. So ye...

7 0
3 years ago
How to subtract hexadecimal number when one is bigger than the other?
Inessa05 [86]
Hello,

In order to be simple: let's code hexadecimal numbers on 4 digits.

Example: 500-200=300 (in décimal)

500_{10}=01F4_{16}\\\\
200_{10}=00C8_{16}\\\\
For\ subtract\ 00C8\ we\ calculate\ 15th\ complement\\\\
C_{15}(00C8)=FF37\\\\

16th\ complement= FF37+0001=FF38\\\\

Then\ we\ add\\\\

01F4+FF38=(1)012C\ on\4\ digits:\ 012C\\

012C_{16}=300_{16}


7 0
3 years ago
There are 20 guests at a party.The host has 8 Gallons of punch.He estimates that each guest will drink 2 cups of punch.If he est
sergey [27]
8 gallons= 128 cups
20 guests x 2 cups each= 40 cups will be gone
128-40= 88 cups left over
88 cups= 5.5 gallons of punch left at the end of the party.
5 0
3 years ago
Areas of circles and sectors
77julia77 [94]

Answer:

Multiply both numbers, sorry i can't see the numbers properly or i'd have answer the question myself.

Step-by-step explanation:

Remember area is B times H divided by 2.

So, don;t forget to dicide by 2.

3 0
3 years ago
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