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Klio2033 [76]
3 years ago
5

Can someone solve this?

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
5 0

Answer:

x = 8

Step-by-step explanation:

5x - 7 = x + 25

-x       -x

4x - 7 = 25

+7    +7

4x = 32

/4      /4

x = 8

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Errors in an experimental transmission channel are found when thetransmission is checked by a certifier that detects missing pul
Ivahew [28]

Answer:

a) P(X \leq 4)

And we can find this using the cumulative distribution function:

P(X \leq 4) = F(4) = 0.9

b) P(X > 7)

And we can find this using the cumulative distribution function and the complement rule on this way:

P(X >7) =1-P(X\leq 7)= 1- F(7) = 1-1 = 0

c) P(X \leq 5)

And we can find this using the cumulative distribution function:

P(X \leq 5) = F(5) = 0.9

d) P(X > 4)

And we can find this using the cumulative distribution function and the complement rule on this way:

P(X >4) =1-P(X\leq 4)= 1- F(4) = 1-0.9 = 0.1

e) P(X \leq 2)

And we can find this using the cumulative distribution function:

P(X \leq 2) = F(2) = 0.7

Step-by-step explanation:

For this case we have the following cumulative distribution function:

F(x) = 0 , x

F(x) = 0.7, 1 \leq x

F(x) = 0.9, 4 \leq x

F(x) = 1, x \geq 7

Part a

We want this probability:

P(X \leq 4)

And we can find this using the cumulative distribution function:

P(X \leq 4) = F(4) = 0.9

Part b

We want this probability:

P(X > 7)

And we can find this using the cumulative distribution function and the complement rule on this way:

P(X >7) =1-P(X\leq 7)= 1- F(7) = 1-1 = 0

Part c

We want this probability:

P(X \leq 5)

And we can find this using the cumulative distribution function:

P(X \leq 5) = F(5) = 0.9

Part d

We want this probability:

P(X > 4)

And we can find this using the cumulative distribution function and the complement rule on this way:

P(X >4) =1-P(X\leq 4)= 1- F(4) = 1-0.9 = 0.1

Part e

We want this probability:

P(X \leq 2)

And we can find this using the cumulative distribution function:

P(X \leq 2) = F(2) = 0.7

7 0
3 years ago
(6d – 10d3 + 3d2) – (5d3 + 3d – 4)
AnnZ [28]

Answer:

-4(9d-1)

Step-by-step explanation:

(6d-10d×3+3d×2)-(5d×3+3d-4)

(6d-30d+6d)-(15d+3d-4)

6d-30d+6d-15d-3d+4d

-36d+4

-4(9d-1)

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3 years ago
Simplify the expression
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Answer:453rft

Step-by-step explanation:

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Marta_Voda [28]
XDXD you should be able to edit it
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A school club is raising money for a trip, and needs to reach $5,000. Their
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Answer:

It's C.) It's the amount of money they raise each week.

Step-by-step explanation:

Hope this helps :))

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