Given that a x b = 70, work out the value of 3b/a
1 answer:
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First Method: Using Graph
Finding the limits as x approaches infinity and negative infinity is one way to solve this problem. As x reaches infinity, simply follow the graph line (colored purple) to the far right to find its limit. If we trace it, we can see that the Y value never exceeds -3 (orange), indicating that the limit is equal to -3 as x approaches infinity. You'd do the same with negative infinity, the limit is -3. We may now say the following:
And that's the answer to your question.
Second Method: Using Mathematics
I'm not sure if this solution is suitable for your stage, but you can solve this problem using L'Hopital's rule:
<em>Graphed by: Desmos</em>
Answer:
0.139
Step-by-step explanation:
We are given that
Total number of cards=52
n=18
We have to find the probability of drawing at least 7 spades
Total number of spaded in deck of 52 cards=13
Probability of getting spade=
Probability,
Probability of getting no spade=
By binomial theorem of probability
P(x
The probability of drawing at least 7 spades=
The probability of drawing at least 7 spades=0.139