Tamara has a cell phone plan that charges $0.07
per minute plus a monthly fee of $19.00. She
...
Mathematics, 07.04.2021 07:20 erica11223344
Tamara has a cell phone plan that charges $0.07
per minute plus a monthly fee of $19.00. She
budgets $29.50 per month for total cell phone
expenses without taxes. What is the maximum
number of minutes Tamara could use her phone
each month in order to stay within her budget?
A. 150
B. 271
C. '421
D. 692
Answers: 3
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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
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