The perimeter of parallelogram abcd is 30 cm. ad 3 cm more then twice ab. find the length of ab. a) 3 cm b) 4 cm c) 9 cm d) 11 cm

Option B.

Step-by-step explanation:

we know that

In a parallelogram opposite sides are congruent and parallel

so

the perimeter of parallelogram is equal to

we have

so

-----> ----> equation A

-----> equation B

Substitute equation B in equation A and solve for AB

true

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )