Which methods could you use to calculate the y-coordinate of the midpoint of
a vertical line segment with endpoints at (0,0) and (0, -12)?
Check all that apply.

1/2 × ( yB+yA ) = yM

Step-by-step explanation:

AB = | yB-yA | = | -12-0 | = 12

yM = 1/2 × ( yB+yA ) = 1/2 × ( -12 ) = -6

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

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: