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Mazyrski [523]
3 years ago
7

Will give brainliest Evaluate the expression using the order of operations and rules for signed numbers.

Mathematics
2 answers:
Sergio [31]3 years ago
7 0

Answer:

-15

Step-by-step explanation:

Lady bird [3.3K]3 years ago
5 0

Answer:

Given 6.8(6.7 – 7.2) – 2(4.6 + 1.2)

Explanation:

-15 is your answer

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Three bags of rice weigh 90 kgs. How much do 9 bags weigh?
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9 bags would weigh 270kgs

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3 years ago
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The useful life of an electrical component is exponentially distributed with a mean of 1000 hours a. What is the probability the
julia-pushkina [17]

Answer:

0.865

Step-by-step explanation:

To solve for the probability we would be using the formula:

F(x) = 1 - e^−λx

Therefore, P(x > 2000) = F(x) = 1 - e^−λx

Mean = 1000 hours

λ = 1/mean = 1/1000 hours

x= 2000 hours

F(x) = 1 - e^−(1/1000)2000

F(x) = 1 - e^−2

= 0.8646647168

Therefore, the probability the the circuit will last at least 2000 hours = 0.865

3 0
3 years ago
Can I help with these two please?
Olin [163]
I have know idea!But if I knew I would help u!
4 0
3 years ago
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How many sides is a decagon? I forgot LOL
umka21 [38]

Answer:

10 sides.

Step-by-step explanation:

In geometry, a decagon is a ten-sided polygon or 10-gon. The total sum of the interior angles of a simple decagon is 1440°. A self-intersecting regular decagon is known as a decagram.

3 0
3 years ago
Factor completely<br> <br> 8x^2(5x+2)+5x+2
Zolol [24]
(5x+2)(8x^2+1) is the answer when factored.
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4 years ago
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