Jayden and sheridan both tried to find the missing side of the right triangle. a right triangle is shown. one leg is labeled as 7 centimeters. the hypotenuse is labeled as 13 centimeters. jayden's work sheridan's work a2 + b2 = c2 a2 + b2 = c2 72 + 132 = c2 72 + b2 = 132 49 + 169 = c2 49 + b2 = 169 218 = c2 b2 = 120 square root 218 equals square root c squared. square root b squared equals square root 120. 14.76 ≈ c b ≈ 10.95 is either of them correct? explain your reasoning.

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.