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Pachacha [2.7K]
3 years ago
10

Choose the pair of complementary angles

Mathematics
2 answers:
tester [92]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Complementary angles are when two angles add up to 90 degrees.

PolarNik [594]3 years ago
7 0
The answer : is B

Explanation:
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If the side ratio is 9:12, then the volume ratio is
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In a game of rolling a die. If the number showing is even, you win $3, if the number showing is 1 you win $3 and if the number s
IceJOKER [234]

Answer:

(a)

\left|\begin{array}{c|c|c}---&---&---\\x&\$0&\$3\\---&---&---\\P(x)&\dfrac13&\dfrac23\\---&---&---\\\end{array}\right|

(b)$2

Step-by-step explanation:

In the given game of rolling a die. these are the possible winnings.

  • If the number showing is even(2, 4, or 6) or 1, you win $3.
  • If the number showing is either 3 or 5 you win $0.

There are 6 sides in the die.

P($obtaining a 1,2,4 or 6)=\dfrac46=\dfrac23\\P($obtaining a 3 or 5)=\dfrac26=\dfrac13

(i)The probability distribution of x.

Let x be the amount won

Therefore:

Probability distribution of x.

\left|\begin{array}{c|c|c}---&---&---\\x&\$0&\$3\\---&---&---\\P(x)&\dfrac13&\dfrac23\\---&---&---\\\end{array}\right|

(ii) Expected amount of dollar won

Expected Amount

=\sum x_iP(x_i)\\=(0*\dfrac13)+(3*\dfrac23)\\=\$2\\

You would expect to win $2.

7 0
3 years ago
Find the distance between the points (3,-5) and (3,7)
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Answer:

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Step-by-step explanation:

They already have the same x so just find the difference between -5 and 7

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Answer:

9:7 or 18/14

Step-by-step explanation:

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