Mathematics, 10.07.2019 17:30 leonarddyer4599
Solve the system. x – 4y – z = 21 6x – 3y – z = –4 –x +2y –5z = 19 x = , y = , z =
Answers: 1
Mathematics, 21.06.2019 22:00
Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.
Answers: 2
Mathematics, 21.06.2019 23:00
How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =
Answers: 3
Mathematics, 21.06.2019 23:10
What is the radius of the cone in the diagram? round your answer to the nearest whole number
Answers: 2
Mathematics, 22.06.2019 00:00
Which scenarios are most effectively explored by conducting an experiment? there is more than one correct answer. select all that apply. researchers want to study the effectiveness of a particular drug for treating migraines. they want to know which dosage of the drug yields the best results with the least side effects. to ensure fair results, the researchers want to ensure that participants and dosage administrators do not know which dosage participants receive. a teacher wants to plan a class fieldtrip and quickly determine where students prefer to go for the class fieldtrip. a car mechanic wants to know which of two engine brands makes better-performing engines. he wants to test the engines in identical situations and rate their performance in a way that can be fairly measured. a chemist studies the properties of a metal compound. she wants to know how the sample size of the metal affects its ability to conduct electricity. she wants to conduct the research in a controlled environment to minimize bias. a realty company wants to know the average income of its clients. the company wants to gather data income from current clients.
Answers: 2
Solve the system. x – 4y – z = 21 6x – 3y – z = –4 –x +2y –5z = 19 x = , y = , z = ...
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