Use matrices to solve the system of equations:
4x-y-z = -20
6x -z = -27
-x + 4y + 5z =...
Mathematics, 07.12.2021 03:30, renee9913
Use matrices to solve the system of equations:
4x-y-z = -20
6x -z = -27
-x + 4y + 5z = 23
What is the sum of all the solutions?
Answers: 2
Mathematics, 21.06.2019 18:40, calebhoover03
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
Answers: 1
Mathematics, 22.06.2019 01:30, kuadirkennedy
You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.
Answers: 1
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