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Liula [17]
3 years ago
15

If you roll a die twice, what is the probability

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
5 0

Answer:

1/36

Step-by-step explanation:

assuming a 6-sided fair die, the probability that you roll any number from 1-6 for any one roll is 1/6,

hence

P(roll 5) = 1/6

P(roll 6) = 1/6

P( roll 5 then roll 6)

= P(roll 5) x P(roll 6)

= (1/6) (1/6)

= 1/36

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Write an expression equivalent to `b+b+b+b+b` that is a product of a coefficient and a variable.
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b^5

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janey like to sleep for 9 hours 45 mins every night. On Monday she needs to be in bed to wake up at 7.25am what time does she ne
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4 years ago
The radius of a circle is 13 find its area un terms of pi​
lukranit [14]

Answer:

530.66

Step-by-step explanation:

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3 0
3 years ago
The equation below expresses the approximate
natka813 [3]

Answer:

The ball will be the 7 ft high at 2 different times.

Step-by-step explanation:

The height in meters of the ball is given by the following equation:

h(t) = -16t^2 + 25t

7 feet high

The height, by the equation, is given in meters, so we have to work in meters. Since each feet has 0,3048 meters, 7 feet have have 2.1336 meters. So, we have to solve the following equation

2,1336 = -16t^2 + 25t

16t^2 - 25t + 2,1336 = 0

At how many different times will the ball be 7 ft. High?

We have to find the number of solutions for the equation above.

It is given according to the value of \Delta = b^2 - 4ac. If it is positive, there are two solutions, zero one solution and negative no solutions.

In this equation a = 16, b = -25, c = 2.1336. So

\Delta = b^2 - 4ac = (-25)^2 - 4*16*2.1336 = 488

Since the coefficient is positive, the ball will be the 7 ft high at 2 different times.

3 0
3 years ago
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