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3 years ago

Please help ASAP :{ jhjkhybblvklmmm

Mathematics

2 answers:

babunello [35]3 years ago

8 0

Answer:

Step-by-step explanation:

V=0.5*b*l*h

V=0.5*10*28*12

V=10*14*12

V=10*168

V=1680 m^3 or C

Andrew [12]3 years ago

5 0

Answer:

C. 1680 m³

Step-by-step explanation:

Find the base of the triangular prism:

$\frac{1}{2}*28m*12m=\\14m*12m=\\168m^2$

Now we can multiply the base by the height, 10.

$168m^2*10m=\\1680m^3$

Our answer is C. 1680 m³

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The number of calls coming per minute into a hotel reservation center is Poisson random variable with mean 3.

natima [27]

Answer:

a) 0.05

b) 0.9826

c) 0.000039308

Step-by-step explanation:

a) $P_X(0) = \frac{e^{-3}3^0}{0!} = e^{-3} = 0.05$

b) For two minutes, the mean is doubled, hence it is 6. In order to calculate the probability of al least two calls arriving, we calculate first the probability of the complementary event: At most 1 call will arrive. For that probability, we need to sum the probabilities of 0 and 1.

$P_X(0) = e^{-6}$

$P_X(1) = \frac{e^{-6}*6^1}{1!} = 6*e^{-6}$

Hence,

$P(X \geq 2) = 1-P(X < 2) = 1- 7*e^{-6} = 0.9826$

c) For five minutes the mean is 15. We need to sum the probabilities of 0, 1 and 2.

$P_X(0) = e^{-15}$

$P_X(1) = e^{15}*15$

$P_X(2) = \frac{e^{-15}*15^2}{2!} = 112.5*e^{-15}$

As a result,

$P(X \leq 2) = e^{-15}(1+15+112.5) = 0.000039308$

Practically 0

4 0

3 years ago

Jimmy thought he had purchased 7

VashaNatasha [74]

(7-6)/6 leaves 1/6 multiplied by 100 is 100/6 which in percentage is 17%

3 0

3 years ago

Plz help it’s due tonight!!!

algol [13]

Answer:

Step-by-step explanation:

50 + 88= 132

in triangle abc,

132+L=180

L=48

3 0

3 years ago

Read 2 more answers

Please help, thank you

Aleksandr [31]

Answer:

-5

Step-by-step explanation:

$\frac{-5^5}{(-5)^2 (-5)^2}$
$\frac{-3125}{(-5)^2 (-5)^2}$
$\frac{-3125}{25(-5)^2}$
$\frac{-3125}{(25)(25)}$
$\frac{-3125}{625}$
$-5$

5 0

3 years ago

Read 2 more answers

8/15 divided by 1/3 reduce your answer

klio [65]

Here we can use fact than we can multiply fraction by inverse of fraction instead of dividing it.
Inverse of 1/3 is 3/1
Lets multiply it
$\frac{8}{15}* \frac{3}{1}= \frac{24}{15}= \frac{24:3}{15:3}= \frac{8}{5}=1 \frac{3}{5}$ - its our result

7 0

3 years ago