Yis inversely proportional to x and that y = 37 when x =72. find y when x = 12

 y = 222

Step-by-step explanation:

y inversely proportional to x means:       x · y = k

where k is the constant of proportionality

Step 1: Find the k-value

x · y = k

72 · 37 = k

2664 = k

Step 2: substitute k = 2664 and x = 12, then solve for y

x · y = k

12 · y = 2664

     y = 222      divided both sides by 12

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