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:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

in 1995, potato plants were taken into space aboard the space shuttle columbia.

step-by-step explanation: