Which equation represents this situation?
ivy bought some paper. she used 12 sheets. sh...
Mathematics, 31.01.2020 05:57 10035391
Which equation represents this situation?
ivy bought some paper. she used 12 sheets. she has 11 sheets left.
how many sheets of paper did ivy buy?
a.
□ + 11 = 12
b.
□ – 12 = 11
c.
12 – □ = 11
d.
12 – 11 = □
Answers: 2
Mathematics, 21.06.2019 18:00, 22justinmcminn
Darian wants to build a regulation size pool table that is 9 feet in length. he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table
Answers: 1
Mathematics, 21.06.2019 23:30, legendman27
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, 24.07.2019 12:00
Business, 24.07.2019 12:00
Mathematics, 24.07.2019 12:00
Mathematics, 24.07.2019 12:00
Biology, 24.07.2019 12:00