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Sergeeva-Olga [200]
3 years ago
10

Does anyanyone know

Mathematics
1 answer:
Ksju [112]3 years ago
8 0

Answer:

7x² + 4x + 32

Step-by-step explanation:

   13x²  + 7x +21

<u>-    6x² + 3x - 11        </u>

    7x²  +4x + 32

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16 &gt; - 8 + x<br><br> A. x &gt; 24<br><br> B. x &lt; 24<br><br> C. x &gt; 8<br><br> D. x &lt; 8
xeze [42]

Answer:

B. x < 24

Step-by-step explanation:

16 > - 8 + x

+8 > +8 + x     Add 8 to both sides

24 > x

Final answer: x < 24

6 0
3 years ago
A number increased by 8 gives the same result as a number multiplied by 8. whay is that number?
Airida [17]
x+8=8x\\&#10;7x=8\\&#10;x=\frac{8}{7}
5 0
3 years ago
The number of phone calls that Actuary Ben receives each day has a Poisson distribution with mean 0.1 during each weekday and me
Dovator [93]

Answer:

There is a 0.73% probability that Ben receives a total of 2 phone calls in a week.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

The problem states that:

The number of phone calls that Actuary Ben receives each day has a Poisson distribution with mean 0.1 during each weekday and mean 0.2 each day during the weekend.

To find the mean during the time interval, we have to find the weighed mean of calls he receives per day.

There are 5 weekdays, with a mean of 0.1 calls per day.

The weekend is 2 days long, with a mean of 0.2 calls per day.

So:

\mu = \frac{5(0.1) + 2(0.2)}{7} = 0.1286

If today is Monday, what is the probability that Ben receives a total of 2 phone calls in a week?

This is P(X = 2). So:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 2) = \frac{e^{-0.1286}*0.1286^{2}}{(2)!} = 0.0073

There is a 0.73% probability that Ben receives a total of 2 phone calls in a week.

3 0
3 years ago
3 2/3 + 2.3 (the three is repeating) and the answer choices are
Ne4ueva [31]

Step-by-step explanation:

please check and rewrite ur question

7 0
3 years ago
Read 2 more answers
11. The entry fee to the fair is $4. Each ride requires a ticket that costs $0.50. Heidi spent a total of
masya89 [10]

Answer:

16 ride tickets.

Step-by-step explanation:

The original entry fee is $4 so you can subtract that from 12. Now you have $8. So you would double 8 since $0.50 is half of $1. 8x2 is 16.

8 0
2 years ago
Read 2 more answers
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