Find k if the lines 3x-5y=9 & 2x+ky=11 are a)parallel and b)perpendicular

a)

b)

Step-by-step explanation:

If two lines and ( where, and are their slope respectively ) are,

Parallel, if,

Perpendicular, if,

Here, the lines are,

3x - 5y = 9 ⇒ 5y = 3x - 9 ⇒

2x + ky = 11 ⇒ ky = -2x + 11 ⇒

a) If they are parallel,

b) If they are perpendicular,

answer: h

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.