The size of each interior angle of a regular polygon is 11 times the size of each exterior angle. Work out how many sides the po
2 answers:
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4th degree, so the ends both point in same direction
positive leading coefient so both ends point up
factor it to see wheere the roots are
the roots are r1,r2,r3,r4 in P(x)=(x-r1)(x-r2)(x-r3)(x-r4)
factor
P(x)=(x-3)(x-2)(x+1)(x+3)
the roots are
3,2,-1,-3
disregard negative roots becasue you can't have negative time or something
3 or 2
see my rough graph
here is rough scetch
positive leading coefient so both ends point up
factor it to see wheere the roots are
the roots are r1,r2,r3,r4 in P(x)=(x-r1)(x-r2)(x-r3)(x-r4)
factor
P(x)=(x-3)(x-2)(x+1)(x+3)
the roots are
3,2,-1,-3
disregard negative roots becasue you can't have negative time or something
3 or 2
see my rough graph
here is rough scetch
value of x = -1 and value of y=8
Step-by-step explanation:
We need to solve the system of equations:
Multiply eq(2) with 4 and subtract with eq(1)
So, value of y=8
Now, finding value of x by putting value of y in equation 2
So, value of x = -1
value of x = -1 and value of y=8
Keywords: System of Equations
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