Mathematics, 23.10.2020 01:01 cheesecake1919
Hello, I need to know how to solve the system of linear equations by substitution.
these are the two equations:
3x+y=-9
y=5x+7
for x I got -2 but im not sure if its correct.
thanks for the help!
Answers: 1
Mathematics, 21.06.2019 16:30
What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1
Answers: 2
Mathematics, 21.06.2019 23:00
Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer
Answers: 2
Mathematics, 22.06.2019 02:30
Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias
Answers: 2
Mathematics, 22.06.2019 04:30
Imade a beaded necklace that was 2/6 blue, 3/5 green and the rest were white. did the necklace have more blue or green how many white beads did it have.
Answers: 1
Hello, I need to know how to solve the system of linear equations by substitution.
these are the tw...
Mathematics, 31.05.2021 20:50
Mathematics, 31.05.2021 20:50
Mathematics, 31.05.2021 20:50
Computers and Technology, 31.05.2021 20:50
Mathematics, 31.05.2021 20:50
Business, 31.05.2021 20:50
English, 31.05.2021 20:50