Mathematics
22.09.2020 16:19
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4. Look at the system of equations. y = 2x - 1 4x + y = 2 Which shows a correct
4. Look at the system of equations.
y = 2x - 1
4x + y = 2
Which shows a correct step in using substitution to solve the system of equations?
A. 4x + y = 2x - 1
B. 4x + 2x - 1 = 2
C. 6x - 2 = y.
D. 6x + 2 = 2y
Show Answers
y = 2x - 1
4x + y = 2
Which shows a correct step in using substitution to solve the system of equations?
A. 4x + y = 2x - 1
B. 4x + 2x - 1 = 2
C. 6x - 2 = y.
D. 6x + 2 = 2y
hftyd2046
5,0(45 marks)
B. 4x + 2x - 1 = 2
Step-by-step explanation:
Option B shows a correct step in using substitution to solve the system of equations.
rlymyaa15
4,7(33 marks)
To find x, applying sine equation:
sin (theeta)= per/ hyp
sin (80) = 9 / x
x = 9 / sin(80)
= -9.05
sin (theeta)= per/ hyp
sin (80) = 9 / x
x = 9 / sin(80)
= -9.05
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