PQRS is a parallelogram, m∠P=121∘ , and m∠S=(7x−4)∘ .

What is the value of x?

Step-by-step explanation:

121+7x-4=180

7x-4=180-121=59

7x=59+4=63

x=63/7

x=9

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can i get the link to the assignment?

step-by-step explanation:

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