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Recent questions tagged operation


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Do I need to know Optimization and Operation Research Topics for data science?
1 answer 7 views
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How do I know if a business operation is part of the formal or informal economy?
1 answer 14 views
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How do you subtract matrices?
1 answer 40 views
How do you subtract matrices?How do you subtract matrices? ...
by Siyavula Bronze Status
(7,026 points)
asked in Mathematics Sep 6, 2021
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What is the order of operations? What acronym is used to describe the order of operations, and what does it stand for?
0 answers 40 views
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What does the acronym PEMDAS stand for?
1 answer 43 views
What does the acronym PEMDAS stand for?What does the acronym PEMDAS stand for? ...
by MathsGee Platinum
(104,076 points)
asked in Mathematics Jul 29, 2021
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Subtract the two matrices
1 answer 26 views
Subtract the two matrices\begin{equation} \text { If } A=\left\begin{array}{cc} -3 & 8 \\ 3 & 5 \end{array}\right \text { and } B=\left\begin{array}{ll} 3 & -8 ...
by MathsGee Platinum
(104,076 points)
asked in Mathematics Jul 24, 2021
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Multiply: $(x-4)(x+5)$
1 answer 85 views
Multiply: $(x-4)(x+5)$Multiply: $(x-4)(x+5)$ ...
by MathsGee Platinum
(104,076 points)
asked in Mathematics Jul 16, 2021
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How many different three-digit numbers can be obtained in this way?
1 answer 89 views
How many different three-digit numbers can be obtained in this way?A box contains 9 balls, numbered 1 through $9 .$ One ball is removed at random from the box and replaced, and this process is repeated two more times. ...
by MathsGee Platinum
(104,076 points)
asked in Data Science & Statistics May 30, 2021
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Find the probability that none of the three bulbs in a set of traffic lights will have to be replaced during the first 1200 hours of operation

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What is the probability that the device fails during its first hour of operation?
1 answer 179 views
What is the probability that the device fails during its first hour of operation?What is the probability that the device fails during its first hour of operation? A device runs until either of two components fails, at which point t ...
by MathsGee Platinum
(104,076 points)
asked in Data Science & Statistics May 26, 2021
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What is behavioural economics?
0 answers 75 views
What is behavioural economics?What is behavioural economics? ...
by MathsGee Platinum
(104,076 points)
asked in Economics & Finance Feb 28, 2021
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How many integers from 100 to 199 are divisible by 7?
0 answers 114 views
How many integers from 100 to 199 are divisible by 7?How many integers from 100 to 199 are divisible by 7? ...
by MathsGee Platinum
(104,076 points)
asked in Mathematics Feb 20, 2021
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How many 7- digit numbers are divisible by 4?
0 answers 50 views
How many 7- digit numbers are divisible by 4?How many 7- digit numbers are divisible by 4? ...
by MathsGee Platinum
(104,076 points)
asked in Mathematics Feb 20, 2021
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How many numbers up to 350 are all divisible by 2 or 3?
0 answers 97 views
How many numbers up to 350 are all divisible by 2 or 3?How many numbers up to 350 are all divisible by 2 or 3? ...
by MathsGee Platinum
(104,076 points)
asked in Mathematics Feb 20, 2021
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How many numbers less than 400 but greater than 10 are divisible by 7?
0 answers 101 views
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How many positive numbers less than 1000 are divisible by 6 but not by 5?
1 answer 444 views
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Find the sum of all positive integers which are less than 2010 and are not divisible by 3
0 answers 123 views
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How many positive integers less than 2009 are divisible by 28 but not by 12?
0 answers 118 views
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At least how many 3-digit composite numbers should be chosen to ensure that at least two of the chosen numbers are not relatively prime?
0 answers 72 views
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How many 4-digit positive numbers, whose digits are from the set {1, 2, 3, 4}, are divisible by 4?
0 answers 120 views
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If p, x, and y are positive integers, y is odd, and p = x^2 + y^2, is x divisible by 4?
0 answers 130 views
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If the remainder is 7 when positive integer n is divided by 18, what is the remainder when n is divided by 6?
0 answers 196 views
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Help me solve this expression:
1 answer 57 views
image
Help me solve this expression: Help me solve this expression: ...
by Joshua Mwanza Diamond
(46,418 points)
asked in Mathematics Aug 20, 2020
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