Mathematics, 05.07.2019 10:00 brockhull
Elba writes the following proof for the theorem: if the diagonals of a quadrilateral bisect each other, the quadrilateral is a parallelogram: elba's proof 1. for triangles aob and cod, angle 1 is equal to angle 2 as they are vertical angles. 2. ao = oc and bo = od because it is given that diagonals bisect each other. 3. therefore, the triangles aob and cod are congruent by sas postulate. 4. similarly, triangles aod and cob are congruent. 5. by cpctc, angle abd is equal to angle cdb and angle adb is equal to angle cbd. 6. as the are congruent, the opposite sides of quadrilateral abcd are parallel. 7. therefore, abcd is a parallelogram. which is the missing phrase in elba's proof? alternate interior angles corresponding angles corresponding sides opposite sides
Answers: 2
Mathematics, 21.06.2019 17:00
An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?
Answers: 3
Mathematics, 22.06.2019 02:00
Aladder that is 20 ft. long against the side of a building. f the angle formed between the ladder and the ground is 75 degrees, how far is the bottom of the ladder from the base of the building?
Answers: 3
Mathematics, 22.06.2019 03:30
Sections of prefabricated woods are each 5 1/3 feet long, how long are 7 1/2 sections placed end to end?
Answers: 3
Elba writes the following proof for the theorem: if the diagonals of a quadrilateral bisect each ot...
World Languages, 12.01.2020 10:31
History, 12.01.2020 10:31
Computers and Technology, 12.01.2020 10:31
Mathematics, 12.01.2020 10:31
History, 12.01.2020 10:31
Social Studies, 12.01.2020 10:31
Chemistry, 12.01.2020 10:31
Mathematics, 12.01.2020 10:31
Computers and Technology, 12.01.2020 10:31
History, 12.01.2020 10:31
English, 12.01.2020 10:31
English, 12.01.2020 10:31
Health, 12.01.2020 10:31
English, 12.01.2020 10:31
Chemistry, 12.01.2020 10:31