2x^2-x+x^2-3x combine like terms
3x^2-4x set equal to zero and factor
x(3x-4)=0 solve each individual factor to find the solutions/roots
x=4/3, 0
Answer:11/2
Step-by-step explanation:You multiply 5 and 2, the answer will be 10. Plus 1, 11. So, 11/2
Answer:
27 miles
Step-by-step explanation:
The law of cosines can be used to find the distance between the boats. In 1 hour, one has traveled 28 miles, and the other has traveled 26 miles. The angle between their directions of travel is ...
180° -50° -70° = 60°
Then the distance c can be found from ...
c^2 = a^2 +b^2 -2ab·cos(C)
c^2 = 28^2 +26^2 -2·28·26·cos(60°) = 732
c = √732 ≈ 27.055
The boats are 27 miles apart after 1 hour.
Answer:
The graph is decreasing
Step-by-step explanation:
Starting at -1, the graph goes down to its value at 1
The graph is decreasing