Answer:
139.48
Step-by-step explanation:
cos(55)=80/x
80/cos(55)=x
Answer:
do you know how to divide without a calculator? you should really learn...but here 3=211,4=60.875,5=410.25,6=307.23
Step-by-step explanation:
Forced vital capacity: the maximum amount of air you can forcibly exhale from your lungs after fully inhaling. It is about 80 percent of total capacity, or 4.8 liters, because some air remains in your lungs after you exhale
