Leave the answers as an integer or reduced fraction

8+ (5 +2·10)-3

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

Who long does it take to drive 150 miles at 45 miles per hour