PQ||SR and PS||QR
a = ?

a = 80°

Solution:

Given data:

PQ || SR and PS || QR

This implies that PQRS is a parallelogram.

PR is a transversal for the parallel lines PQ and SR.

∠SPR and ∠PRQ are alternate interior angles.

If two parallel lines are cut by a transversal, then alternate interior angles are congruent.

∠SPR ≅ ∠PRQ

m∠SPR = m∠PRQ

m∠SPR =  80°

⇒ a = 80°

Hence the measure of a is 80°.

y - y1 = m(x- x1)

y - (-5) = 2/3(x -0)

y + 5 = 2/3x

y = 2/3x - 5

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72