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lys-0071 [83]
2 years ago
14

Please I need help on this

Mathematics
2 answers:
Damm [24]2 years ago
4 0

Answer:

9k - 18 = -6

Step-by-step explanation:

You have to distribute(jump over the fence)

you need to multiply 9 × k, which will equal 9k

then you will multiply 9×-2, which will equal -18. the 18 stays negative because when multiplying a (+) and a (-) your answer will always be a negative. That's how I got the answer!

Sonja [21]2 years ago
3 0
The first one is 9k cause you’re multiplying it and the second one is -18 because you’re multiplying -2 and 9
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Two faulty machines, M1 and M2, are repeatedly run synchronously in parallel (i.e., both machines execute one run, then both exe
leonid [27]

The event that either M1 or M2 fails has probability

P(M_1\text{ fails or }M_2\text{ fails})=P(M_1\text{ fails})+P(M_2\text{ fails})-P(M_1\text{ and }M_2\text{ both fail})

by the addition rule. Failure events are independent, so

P(M_1\text{ and }M_2\text{ both fail})=P(M_1\text{ fails})P(M_2\text{ fails})

so that

P(M_1\text{ fails or }M_2\text{ fails})=p_1+p_2-p_1p_2

Denote this probability by p. Then X follows a geometric distribution with this parameter p and has density

P(X=x)=\begin{cases}(1-p)^{x-1}p&\text{for }x\ge1\\0&\text{otherwise}\end{cases}

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7 0
4 years ago
Please please answer (-2)(-4)(-1)(-7)(1) = and explain
gregori [183]

Answer:

56

Step-by-step explanation:

(-2)(-4)(-1)(-7)(1) =

(8)(-1)(-7)(1) =

(-8)(-7)(1) =

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hope this helps

have a good day

6 0
3 years ago
A laptop has a list price of $883.99 before tax if the sales are in 7.5% find the total cost of the tax in laptop included rou
Rzqust [24]

Answer:

883.99*7.5%=66.3

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$817.69

4 0
3 years ago
Read 2 more answers
Can someone help me?
Savatey [412]

Answer:

4.5>2.89

Step-by-step explanation:

This question is asking for the comparison between the values of both numbers. 4.5 is greater than 2.89, and this can be written as 4.5>2.89

6 0
3 years ago
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Svetach [21]

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Step-by-step explanation:

21 + 0

8 0
3 years ago
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