Mathematics, 20.07.2019 23:00 lulustar13
Asquare pyramid has a base with an area of 20 square meters, and its lateral faces have a slant height of x meters. sydney is constructing a second square pyramid with the same size base, but the lateral faces of her pyramid have a slant height twice as long, 2x. which statement best describes how the surface area of sydney’s pyramid compares to the surface area of the original pyramid? 1. sydney’s pyramid will have the same surface area because the .5 in the expression for the area of the triangular faces will make up for the slant height being doubled. 2. sydney’s pyramid will have the same surface area because the slant height is not used when finding surface area. 3. sydney’s pyramid will have a surface area that is exactly double the original pyramid’s because the slant height is used when finding the area of every lateral face. 4. sydney’s pyramid will have a surface area that is greater than the original pyramid’s but not double the area because the slant height is not used when finding the area of the base. 30 points
Answers: 2
Mathematics, 21.06.2019 19:30
Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .
Answers: 1
Mathematics, 21.06.2019 19:40
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.
Answers: 3
Mathematics, 21.06.2019 21:00
From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day
Answers: 1
Asquare pyramid has a base with an area of 20 square meters, and its lateral faces have a slant heig...
Mathematics, 30.07.2020 15:01
Mathematics, 30.07.2020 15:01
English, 30.07.2020 15:01
Geography, 30.07.2020 15:01
Mathematics, 30.07.2020 15:01
Computers and Technology, 30.07.2020 15:01
History, 30.07.2020 15:01
Social Studies, 30.07.2020 15:01