Mathematics, 09.04.2021 19:00 tdyson3p6xvtu
In one particular neighborhood, 60% of families own a dog. If there are a total of 25 families in this neighborhood, then how many dog owners are there?
Answers: 2
Mathematics, 21.06.2019 14:30
Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.
Answers: 3
Mathematics, 21.06.2019 19:00
The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.
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Mathematics, 21.06.2019 23:30
Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2
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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
In one particular neighborhood, 60% of families own a dog. If there are a total of 25 families in th...
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