Which expression is equivalent to the expression (-mn2 + 2n2 - 6m2n) + (2mn2 - 2n2 + 3m2n)?
A
mn2 – 3mn
3 mm2 - 40²
3m2n - mn2
mn2 + 4n2 - 9m?n

215.92 dollars is the answer

a

step-by-step explanation:

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the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

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m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0