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Whitepunk [10]
1 year ago
14

Traveling solve 64 less than y is no less than negative 128 give your answers in interval notation

Mathematics
1 answer:
exis [7]1 year ago
7 0

64 less than y = y-64

no less = greater or equal than

negative 128 = -128

y-64 ≥ -128

Add 64 to both sides of the inequality:

y-64+64 ≥ -128+64

y ≥ -64

interval :

[-64,∞)

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(4.1.4) Let X and Y be Bernoulli random variables. Let Z = X + Y. a. Show that if X and Y cannot both be equal to 1, then Z is a
Fynjy0 [20]

Step-by-step explanation:

Given that,

a)

X ~ Bernoulli (p_x) and Y ~ Bernoulli (y_x)

X + Y = Z

The possible value for Z are Z = 0 when X = 0 and Y = 0

and Z = 1 when X = 0 and Y = 1 or when X = 1 and Y = 0

If X and Y can not be both equal to 1 , then the probability mass function of the random variable Z takes on the value of 0 for any value of Z other than 0 and 1,

Therefore Z is a Bernoulli random variable

b)

If X and Y can not be both equal to  1

then,

p_z = P(X=1 or Y=1)\\

p_z = P(X=1)+P(Y=1)-P(=1 and Y =1)

p_z = P(x=1)+P(Y=1)\\\\p_z=p_x+p_y

c)

If both X = 1 and Y = 1 then Z = 2

The possible values of the random variable Z are 0, 1 and 2.

since a  Bernoulli variable should be take on only values 0 and 1 the random variable Z does not have Bernoulli distribution

7 0
3 years ago
Help please!!!!!!!!!!!!!
kaheart [24]

Answer:

53

Step-by-step explanation:

6x3=18

8-3=5

6+1=7

7x5=35

35+18=53

I hope this helps!

5 0
3 years ago
Round 22.700 to the nearest hundredth
hammer [34]
THE ANSWER SHOULD BE 22.70
6 0
3 years ago
Help, 100 pts + brainlist for first person to answer
Blababa [14]

Answer:

About 4.

Step-by-step explanation:

It is actaully 3.95 but if you were rounding and in fraction form, it would be four! Hope this helps!

8 0
2 years ago
Read 2 more answers
Can some one help me im confused
LekaFEV [45]
1) first one....90-27=63°
2)180-128=52°>>>>that is B
3)first one is suppliment....so A
4)180-125=55°....I think D....but not in pic !!!

so...go for it !!!
4 0
3 years ago
Read 2 more answers
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