Find the solution to the system of equations.
−2x+2y=−4
3x+3y=−18...
Mathematics, 31.05.2020 03:59 nae8048
Find the solution to the system of equations.
−2x+2y=−4
3x+3y=−18
Answers: 3
Mathematics, 21.06.2019 18:40
This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.
Answers: 2
Mathematics, 21.06.2019 19:30
[15 points]find the quotient with the restrictions. (x^2 - 2x - 3) (x^2 + 4x + 3) ÷ (x^2 + 2x - 8) (x^2 + 6x + 8)
Answers: 1
Mathematics, 21.06.2019 21:40
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answers: 2
Mathematics, 22.06.2019 00:30
Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)
Answers: 2
English, 02.03.2021 19:30
Mathematics, 02.03.2021 19:30
Advanced Placement (AP), 02.03.2021 19:30
Mathematics, 02.03.2021 19:30
Mathematics, 02.03.2021 19:30
Geography, 02.03.2021 19:30
Spanish, 02.03.2021 19:30
German, 02.03.2021 19:30
Spanish, 02.03.2021 19:30
Mathematics, 02.03.2021 19:30
Mathematics, 02.03.2021 19:30
Mathematics, 02.03.2021 19:30
Mathematics, 02.03.2021 19:30