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Marizza181 [45]
3 years ago
6

Helppp pleaseeee I really need help

Mathematics
2 answers:
Naya [18.7K]3 years ago
5 0

Answer:

Step-by-step explanation:

S

Talja [164]3 years ago
4 0

Step-by-step explanation:

=  \frac{(2c {}^{2} + c - 2) }{(c + 1)}  \\ rationalise \: the \: denominator \\  =  \frac{(2 {c}^{2}  + c - 2)(c  -  1)}{(c + 1)(c - 1)}  \\  =  \frac{(2 {c}^{3}  - 2 {c}^{2} +  {c}^{2}  - c - 2c + 2) }{( {c}^{2}  -  {1}^{2} )}  \\   = \frac{(2 {c}^{3}  -  {c}^{2} - 3c + 2 )}{( {c}^{2} - 1) }

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Cargo ships arrive at a loading dock at a rate of 2 per day. The dock has the capability of handling 3 arrivals per day. How man
Vsevolod [243]

Answer:

4 days

Step-by-step explanation:

We need to use the probability functions of each of the intervals to know the Probability number and then use it in the expected value.

P(x>3 cargo ships) = 1-P(x<=3)

P(x>3) = 1-P(x<=3)

P(x>3) = 1-[P(x=0)+P(x=1)+P(x=2)+P(x=3)]

P(x>3) = 1 - [\frac{e^{-2}2^0}{01}+\frac{e^{-2}2^1}{11}+\frac{e^{-2}2^2}{21}+\frac{e^{-3}2^3}{31}]

P(x>3) = 1- [0.1353(1+2+2+1.33)]

P(x>3) = 1-0.856

P(x>3) = 0.1431

Als n=30, expected number is

E(x) =30*P(x>3)

E(x) = 30*0.1431

E(x) = 4.293

I expect 4.293 or 4 days per month the block being unable to hanlde all arriving ships

6 0
3 years ago
Which angle must be complementary to angle 3?
Dahasolnce [82]

Answer:

It is angle 4 because they make 90 degrees together. This is if there are choices for the problem.

It would be ∠4

7 0
3 years ago
Through (2,0) slope = -5/3 write the slope intercept of the equation
babunello [35]

For this case we have that the equation of a line of the slope-intersection form is given by:

y = mx + b

Where:

m: It's the slope

b: It is the cut-off point with the y axis

In this case we have the following data:

m = - \frac {5} {3}\\(x, y) :( 2,0)

Then, the equation is of the form:

y = - \frac {5} {3} x + b

We find "b" replacing the point:

0 = - \frac {5} {3} (2) + b\\0 = - \frac {10} {3}\\b = \frac {10} {3}

Thus, the equation is:

y = - \frac {5} {3} x + \frac {10} {3}

Answer:

y = - \frac {5} {3} x + \frac {10} {3}

8 0
3 years ago
Read 2 more answers
1.5y - 15 + 1.8y = -10<br> (for my algebra class)
vekshin1

Answer:

y=1.51

Step-by-step explanation:

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3 years ago
Brady has a card collection with 64 basketball cards, 32 football cards ,and 24 baseball cards.He wants to arrange the cards in
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Answer:

He can have 8 cards in each pile amounting at a total of 15 piles of cards.

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