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3 years ago

12

One tennis club charges $22 per session to play tennis. Another tennis club charges an annual fee of $40 plus $16 per session. A

fter how many sessions is the cost at the two clubs the same?

1 answer:

seraphim [82]3 years ago

3 0

22x=16x+40
x≈6.667
(x being the number of sessions)
might need to round up to 7, if you cannot pay for a partial session

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Evaluate x(–y + z) for x = 3, y = 3, and z = 1.

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Step-by-step explanation:

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Let the event that a cell is killed be 'A' and the event where the ith nanotubule kill the cell be ' $\text{B}_i$ '.

This means that the cell will get killed if $\text{B}_1 \bigcup \text{B}_2 \bigcup \text{B}_3 \bigcup \text{B}_4 \bigcup \text{B}_5$ happens. This represents that the cell is killed if nanotubule 1 kills the cell, or nanotubule 2 kills the cell, and so on.

Here, P( $\text{B}_1$ ) = 0.2, P( $\text{B}_2$ ) = 0.4, P( $\text{B}_3$ ) = 0.3, P( $\text{B}_4$ ) = 0.6, P( $\text{B}_5$ ) = 0.5.

So, the probability that the cell will be killed is given by;

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P(A) = $1 - [(1 - 0.2) \times (1 - 0.4) \times (1 - 0.3) \times (1 - 0.6) \times (1 - 0.5)]$

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3 years ago

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