Reduce the following expression to a single function of one angle: cos(45° + A) + cos(45° − A)

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting