Consider the lines y=3x+5 2y=4x+5 3y=9x-2 2y=x-3 4y=x-5. Let's say that a pair of lines is good if the two lines are either parallel or perpendicular to each other. Among all the pairs of lines shown, how many pairs are good?

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

step-by-step explanation:

in which figure is point g a centroid

no because mercury has a density of 13.6 grams per centimeter squared while gold has 19.32 grams centimeter squared

step-by-step explanation:

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .