A triangle has side lengths of (4.8p - 7.9q) centimeters, (7.5p + 3.6r) centimeters, and (3.1r + 8.9q) centimeters. Which expression represents the perimeter, in centimeters, of the triangle ?

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

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

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).