Whitney rolls a ball down a ramp that is 18 feet long if the ball rolls down 2 feet each second what integer represents the amou
2 answers:
Answer:
ball took 9 seconds to reach at the end o the ramp.
Step-by-step explanation:
Whitney rolls a ball down a ramp.
Length of the ramp = 18 feet
Speed by which the ball rolls down = 2 feet per second
Let the ball takes T seconds to reach the end of the ramp.
By the formula,
Time taken =
=
= 9 seconds
Therefore, ball took 9 seconds to reach at the end o the ramp.
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Numerator is the the number above the line on a fraction, while the denominator is the number underneath the line.
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Fraction with numerator -6 and denominator 8
Fraction with numerator -6 and denominator 8
Answer:
he can expect to lose 0.5$
Step-by-step explanation:
To solve this problem we must calculate the expected value of the game.
If x is a discrete random variable that represents the gain obtained when rolling a dice, then the expected value E is:
When throwing a dice the possible values are:
x: 1→ -$9; 2→ $4; 3→ -$9; 4→ $8; 5→ -$9; 6→ $12
The probability of obtaining any of these numbers is:
The gain when obtaining an even number is twice the number.
The loss to get an odd number is $ 9
So the expected gain is:
Answer:
A and C
Step-by-step explanation:
To determine which events are equal, we explicitly define the elements in each set builder.
For event A
A={1.3}
for event B
B={x|x is a number on a die}
The possible numbers on a die are 1,2,3,4,5 and 6. Hence event B is computed as
B={1,2,3,4,5,6}
for event C
Hence the set c is C={1,3}
and for the set D {x| x is the number of heads when six coins re tossed }
In the tossing a six coins it is possible not to have any head and it is possible to have head ranging from 1 to 6
Hence the set D can be expressed as
D={0,1,2,3,4,5,6}
In conclusion, when all the set are compared only set A and set C are equal