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victus00 [196]
3 years ago
9

Olga flips 2 fair coins. What is the probability of obtaining a different result on each coin?

Mathematics
2 answers:
BaLLatris [955]3 years ago
5 0

Answer:

2/4

Step-by-step explanation:

tangare [24]3 years ago
3 0

Answer: There are only two sides in each coin that Olga flips. If the coin lands on heads or tails then both will have a different result as one of them will be revealed to Olga as the coin stops flipping. For example Jessica flips a coin and it lands on tails and heads will not be revealed.

Step-by-step explanation:

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How many plates are on the table as it results in only one value with no variability

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8/19

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Find the area of the parallelogram shown.
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Where is the parallelogram?
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In the 75th Congress (1937−1939) there were in the Senate 75 Democrats, 17 Republicans, and 4 members of other parties. Suppose
ira [324]

Answer:

42 Democrats members

12 Republicans members

2 other parties members

Step-by-step explanation:

We know that there are a total number of voters of

  • 75 (democrats)+17 (Republicans)+ 4( Other parties)=  96 voters

And we know that the bill has passed with 16 nore votes in favor that against, so let's calculate how many votes in favor of the bill we have:

  • 96 Votes = F (votes in Favor)+ A (votes against)

also: F= A+16= A = F-16, so:

  • 96= F+A= F+F-16 => F= 56 votes in favor of the bill

Thos 56 votes are the sum of the votes in favor from all the parties:

56 = D (votes in favor of democrats)+R ((votes in favor of Republicans)+OTH (votes in favor of other parties)

=> 56= D+R+OTH (A)

also democrat's votes in favor are three times the sum of non-democrat's votes in favor:

  • D= 3*( R+OTH) => OTH= D/3-R

and we have 30 more democrats thar republicans voting in favor:

  • D= R+30 => R=D-30

if we replace in the (A) formula:

56 = D+R+OTH => 56= D+D-30+D/3-D+30 =>

  • 56=4/3*D => D=42 (DEMOCRATS VOTES IN FAVOR)
  • R= D-30 => R= 12 (REPUBLICAN VOTES IN FAVOR)
  • OTH= D/3-R= 14-12= 2 (OTHER PARTIE'S VOTES IN FAVOR)

5 0
3 years ago
Which are the solutions of x2 = –11x + 4?
Zarrin [17]

For this case we have the following polynomial:

x ^ 2 = -11x + 4

Rewriting the polynomial we have:

x ^ 2 + 11x - 4 = 0

From here, we can solve the polynomial using the quadratic equation

We have then:

x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}

x=\frac{-11+/-\sqrt{11^2-4(1)(-4)}}{2(1)}

x=\frac{-11+/-\sqrt{11^2+16}}{2}

x=\frac{-11+/-\sqrt{121+16}}{2}

x=\frac{-11+/-\sqrt{137}}{2}

Therefore, the solutions are:

x=\frac{-11+\sqrt{137}}{2}

x=\frac{-11-\sqrt{137}}{2}



5 0
4 years ago
Read 2 more answers
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