Pl i need it
i'll give you brainlist : (
1. create an equivalent system of eq...
Mathematics, 27.10.2019 01:43 maehardy4134
Pl i need it
i'll give you brainlist : (
1. create an equivalent system of equations using the sum of the system and the first equation.
β5x + 4y = 8
4x + y = 2
a. β5x + 4y = 8
9x + 5y = 10
b.β5x + 4y = 8
βx + 5y = 10
c. β5x + 4y = 8
9x + 5y = 2
d.β5x + 4y = 8
βx + y = 10
2. find an equivalent system of equations for the following system:
x + 2y = 2
β4x + 4y = β8
a. x + 2y = 2
β4x β 2y = 10
b. x + 2y = 2
5x + 4y = 8
c. x + 2y = 2
5x β 2y = 10
d. x + 2y = 2
5x β 2y = β8
3.
choose a system of equations with the same solution as the following system:
6x + 2y = β6
3x β 4y = β18
a.8x + 4y = β4
17x + 2y = β28
b.12x + 4y = 12
21x + 2y = β36
c.6x + 8y = β36
15x + 6y = β60
d.6x + y = 15
15x β y = β9
4.a system of equations is shown:
5x + 2y = 3 (equation 1)
2x β 3y = 1 (equation 2)
4.a student wants to prove that if equation 2 is kept unchanged and equation 1 is replaced with the sum of equation 1 and a multiple of equation 2, the solution to the new system of equations is the same as the solution to the original system of equations. if equation 2 is multiplied by 1, which of the following steps should the student use for the proof?
a. show that the solution to the system of equations 7x β y = 4 and 2x β 3y = 1 is the same as the solution to the given system of equations.
b. show that the solution to the system of equations 2x + 5y = 3 and 3x β 2y = 1 is the same as the solution to the given system of equations.
c. show that the solution to the system of equations 9x + 4y = 5 and 7x β y = 4 is the same as the solution to the given system of equations.
d. show that the solution to the system of equations β4x + 9y = 5 and 2x β 3y = 1 is the same as the solution to the given system of equations.
5.given the following system of equations:
β4x + 8y = 16
2x + 4y = 32
what action was completed to create this new equivalent system of equations?
β2x + 4y = 8
2x + 4y = 32
a. divide the second equation, 2x + 4y = 32, by 2.
b. divide the first equation, β4x + 8y = 16, by 2.
c. multiply the second equation, 2x + 4y = 32, by β1.
d. multiply the first equation, β4x + 8y = 16, by β1.
6.explain how system 1 becomes equivalent to system 2.
system 1:
lx + my = n
ax + by = c
system 2:
(l β a)x + (m β b)y = n β c
lx + my = n
a. the first equation in system 2 is the sum of the equations in system 1. the second equation in system 2 is the first equation in system 1.
b. the first equation in system 1 is the difference of the equations in system 2. the second equation in system 1 is the first equation in system 2.
c. the first equation in system 2 is the difference of the equations in system 1. the second equation in system 2 is the first equation in system 1.
d. the first equation in system 1 is the sum of the equations in system 2. the second equation in system 1 is the first equation in system 2.
7.
choose an equivalent system of equations to the following system:
fx + gy = h
qx + ry = s
a.5fx + 5gy = 5h
qx β ry = s
b.5fx + gy = 5h
qx + 5ry = s
c.5fx + 5gy = 5h
qx + ry = s
d. fx + 5gy = 5h
qx + ry = s
8. given the following system of equations:
3x + 5y = 30
x + 3y = 10
which action creates an equivalent system that will eliminate one variable when they are combined?
a. multiply the second equation by β1 to get βx β 3y = β10.
b. multiply the second equation by β3 to get β3x β 9y = β30.
c. multiply the first equation by β1 to get β3x β 5y = β30.
d. multiply the first equation by β3 to get β9x β 15y = β90.
9. two systems of equations are shown:
system a system b
2x + y = 5 β10x + 19y = β1
β4x + 6y = β2 β4x + 6y = β2
which of the following statements is correct about the two systems of equations?
a. they will have the same solutions because the first equation of system b is obtained by adding the first equation of system a to 2 times the second equation of system a.
b. they will have the same solution because the first equation of system b is obtained by adding the first equation of system a to 3 times the second equation of system a.
c. the value of x for system b will be β5 times the value of x for system a because the coefficient of x in the first equation of system b is β5 times the coefficient of x in the first equation of system a.
d. the value of x for system a will be equal to the value of y for system b because the first equation of system b is obtained by adding β12 to the first equation of system a and the second equations are identical.
Answers: 2
Mathematics, 21.06.2019 19:00
The area of square garden is 300m squared. how long is the diagonal?
Answers: 1
Mathematics, 21.06.2019 19:30
Which inequalities can be used to find the solution set of the following inequality? check all that apply. |2x β 5| (2x β 5) (2x + 5) β(2x β 5) β(2x + 5)
Answers: 1
Mathematics, 22.06.2019 03:30
Given the equation β4οΏΌ = 12, solve for x and identify if it is an extraneous solution.
Answers: 1
Mathematics, 14.11.2019 01:31
Mathematics, 14.11.2019 01:31
Mathematics, 14.11.2019 01:31
Physics, 14.11.2019 01:31
History, 14.11.2019 01:31
Mathematics, 14.11.2019 01:31
Mathematics, 14.11.2019 01:31
English, 14.11.2019 01:31
History, 14.11.2019 01:31