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Ganezh [65]
3 years ago
15

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
1 answer:
andrew11 [14]3 years ago
3 0
Ummm not to freak you out but what’s that in the background?
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Is negative square root of 35 rational or irrational?
Vika [28.1K]
Irrational would be the correct answer
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Joelle would like to tip her hairdresser 20%. If her haircut was $38.00, which expression should she use to find the tip amount?
Vilka [71]
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6 0
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(5 x 10^2)^−2<br> i dont get it
ss7ja [257]

Answer:-250,000

Step-by-step explanation:

3 0
3 years ago
A sequence of 1 million iid symbols(+1 and +2), Xi, are transmitted through a channel and summed to produce a new random variabl
Zigmanuir [339]

Answer:

E(w) = 1600000

v(w) = 240000

Step-by-step explanation:

given data

sequence = 1 million iid  (+1 and +2)

probability of transmitting a +1 =  0.4

solution

sequence will be here as

P{Xi = k } = 0.4              for k = +1

                  0.6              for k = +2

and define is

x1  + x2 + ................ + X1000000

so for expected value for W

E(w) = E( x1  + x2 + ................ +  X1000000 )   ......................1

as per the linear probability of expectation

E(w) = 1000000 ( 0.4 × 1 + 0.6 × 2)

E(w) = 1600000

and

for variance of W

v(w) = V ( x1  + x2 + ................ + X1000000 )    ..........................2

v(w) = V x1  + V x2 + ................  + V  X1000000

here also same as that xi are i.e d so cov(xi, xj ) = 0 and i ≠ j

so

v(w) = 1000000 ( v(x) )

v(w) = 1000000 ( 0.24)

v(w) = 240000

8 0
3 years ago
Can anyone help me with this? I know that angle B is 90°
sergey [27]

Answer:

angle c is 58 degrees and and angle a is 42 degrees

Step-by-step explanation:

3 0
3 years ago
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