Part A: As we have learned when given a pair of equations, we must always find a Point of Intersection....or, in other words...the solution of the lines given to us. As we know there can be one solution, in this case we view the graph; see where they intersect, and realize that the solution to these lines (Point of Intersection) is at (4,4).
Thus, your answer.
Answer: 977000
Step-by-step explanation:
Divide everything by the "X" thing AND MOVE IT TO OPPOSITE SIDE
- How do you simplify this?
- x²y+xy² / y²+2/5 × xy
Factor the expressions that are not already factored.
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<u>How </u><u>to</u><u> factorise</u><u> </u><u>:</u><u>-</u>
<u>NUMERATOR</u> 
Factor out xy.
<u>DENOMINATOR</u>
Factor out 1/5.
_____
Continuing...
Cancel out y in both the numerator and denominator.
Expand the expression.
This can further simplified to as
Answer:
Step-by-step explanation:
cos ^-1(0)=(2n+1) π/2
where n is an integer.
if 0 ≤α ≤2 π
n=0,1
cos ^-1(0)=π/2,3π/2
