Answer:
20
Step-by-step explanation:
Answer:
26. length=7cm width=4cm
27. length=12cm width=5cm
28. length=12 cm width=9cm
29. length=7 cm
30. length=2cm
Steps :-
■ Eliminate the equations (subtract them). You'll get the value of 1 variable.
■ Then substitute in another equation to get the value of the other variable.
Answer :-
■ x = -8 & y = 0
See the attachment for the steps.
________
Hope it helps ⚜
Step-by-step explanation:
We have to make x the subject:
y = x² + 4x + 4.
=> y = (x + 2)² by completing the square
=> x + 2 = ±√y
=> x = ±√y - 2
Therefore the inverse is y = ±√x - 2.
Answer: the first one
Step-by-step explanation: