2. If sec x = 48, what is the value of sinx? Rounded to the nearest hundredth.
3. If tan B = 7/8, then what is the value of cos B? Rounded to the nearest
hundredth.
show your work

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

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