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Mathematics, 21.06.2019 22:50
Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?
Answers: 1
Mathematics, 21.06.2019 23:30
Given: ad¯¯¯¯¯ is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason ad¯¯¯¯¯ is an altitude, and ∠bac is a right angle. given ∠adb and ∠adc are right angles. definition of altitude ∠bac≅∠bda ? ∠bac≅∠adc ? ∠b≅∠b ? ∠c≅∠c reflexive property of congruence △abc∼△dba ? △abc∼△dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality
Answers: 1
Mathematics, 22.06.2019 00:40
Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.
Answers: 3
Mathematics, 22.06.2019 05:50
Nani needs to buy 8 cups of fresh pineapple for a fruitcocktail. the table shows the unit prices (per cup) ofpineapple at different stores. if nani only has $4, fromwhich stores could she purchase her pineapple? check all that apply.
Answers: 3
Social Studies, 31.01.2020 14:54
Social Studies, 31.01.2020 14:54
Mathematics, 31.01.2020 14:54
Mathematics, 31.01.2020 14:54
English, 31.01.2020 14:54
Social Studies, 31.01.2020 14:54