Mathematics, 28.07.2020 17:01 ssuereichard
In order to solve the following system of equations by addition, which of the
following could you do before adding the equations so that one variable will
be eliminated when you add them?
4x ā 2y=7
3.x ā 3y=15
O A. Multiply the top equation by 3 anglihe bottom equation by 2
nghe
B. Multiply the top equation by 3 and the bottom equation by 4
O c. Multiply the top equation by
-3 and the bottom equation by 2
O D. Multiply the top equation by 1/3
Answers: 2
Mathematics, 21.06.2019 19:00
Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?
Answers: 1
Mathematics, 21.06.2019 22:00
Sara has been reading about different types of financial grants, including federal pell grants, academic competitiveness grants, smart grants, and teach grants. which statement about these grants is true? filling out a fafsa will not her apply for these grants. she will not have to pay back any funds she receives from these grants. these grants only go to students with less than a 3.0 gpa. she will have to pay back all the funds she receives from these grants.
Answers: 2
Mathematics, 21.06.2019 22:00
Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2
Answers: 1
Mathematics, 22.06.2019 00:00
The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. noise in a quiet room is 500 times as intense as the threshold of sound. what is the decibel measurement for the quiet room? 20 decibels28 decibels200 decibels280 decibels
Answers: 1
In order to solve the following system of equations by addition, which of the
following could you d...
Mathematics, 30.01.2021 02:40
Mathematics, 30.01.2021 02:40
Mathematics, 30.01.2021 02:40
Mathematics, 30.01.2021 02:40
Mathematics, 30.01.2021 02:40
Social Studies, 30.01.2021 02:40
Mathematics, 30.01.2021 02:40
Mathematics, 30.01.2021 02:40
Social Studies, 30.01.2021 02:40
Mathematics, 30.01.2021 02:40
Social Studies, 30.01.2021 02:40