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kati45 [8]
3 years ago
5

PLzzzzzzz help and give an actual answer plzzzzzzzzzzzzzzzzzzzzz its for an exam and i need it really badd

Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0

Answer:

if yu not sure use math    way

Step-by-step explanation:

Kazeer [188]3 years ago
5 0
I'm pretty sure it's D
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The radius of a circle is 2.9 in. Find the circumference to the nearest tenth (help please)
nika2105 [10]

Answer:4.18

Step-by-step explanation:

2.9+2/9

4 0
3 years ago
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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
Which statements are true
Lemur [1.5K]

Answer:

A

Step-by-step explanation:

A is the answer A is the answer

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3 years ago
What equation is the result of solving 7+4x=3y for x
ehidna [41]

Answer:

x=3y/4 - 7/4

Step-by-step explanation:

8 0
3 years ago
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At a factory, Taj produces 23 toys per hour and Rosa produces 47 toys per hour. How many hours will it take for
Kruka [31]

Answer:

7 hours

Step-by-step explanation:

47+23=70

1hour = 70 toys

? = 490 toys

Then you cross multiply:

1hour*490 toys= 490/70 = 7 hours

____________

70 toys

8 0
3 years ago
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