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Likurg_2 [28]
3 years ago
9

I need help, along with an explanation, for this question.

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
8 0

Answer:

1.  -9

2.  -15

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

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A bank manager estimates that an average of two customers enter the tellers' queue every five minutes. Assume that the number of
Dovator [93]

Answer:

The value is  P(X = 3) = 0.1804  

Step-by-step explanation:

From the question we are told that

   The number of customer that enter the tellers every 5 minutes is  \lambda   = 2

Generally the  probability that exactly three customers enter the queue in a randomly selected five-minute period is mathematically represented as

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=>   P(X = 3) = \frac{e^{- 2} * \lambda^{3}}{3!}

=>   P(X = 3) = 0.1804    

4 0
3 years ago
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<span>I think you meant 6x²+13x-5 so first thing we have to do is factor it which is really quite tricky with this kind of trinomial so first take ac which is 6 times -5 so -30 now figure out factors of -30 that will add up to 13 how about 15 and -2 now that we have the factors write the equation again</span>

<span /><span> 6x²+15x-2x-5  </span>split the equation in half<span />

<span>6x²+15x   -2x-5 so out of the first equation we can pull a 3x out</span>

<span>3x(2x+5) and out of the second we can pull a negative 1</span>

<span>3x(2x+5) -1(2x+5) rewrite it</span>

<span>(3x-1)(2x+5) so the 3x-1 is the factor we already had so the other side is (2x+5)</span>

<span>
</span>

<span><u>HOPE THIS HELPS!!!</u></span>

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