Mathematics, 16.07.2019 14:00 kaygirlnelson6258
Two months ago, the mean daily rainfall in a local city was 9.4 cm. the mean absolute deviation was 3.5 cm. last month, the mean daily rainfall in that city was 11.5 cm, and the mean absolute deviation was 1.6 cm. which statement about the rainfall is true? a. more rain fell two months ago than last month. b. about the same about of rain fell two months ago as last month. c. last month, the amount of rain that fell each day varied about the same as the month before. d. last month, the amount of rain that fell each day varied less than the month before.
Answers: 1
Mathematics, 20.06.2019 18:02
Three children each had the same amount of money in their savings account. one of the children withdrew three quarters of her moneyand spent it all on a $100 sports jersey. what was the total amount of money originally in the accounts?
Answers: 1
Mathematics, 21.06.2019 19:00
The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean
Answers: 3
Mathematics, 21.06.2019 21:30
A.s.a.! similarity in right triangles, refer to the figure to complete this proportionc/a = a/? a.) cb.) hc.) rd.) s
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
Two months ago, the mean daily rainfall in a local city was 9.4 cm. the mean absolute deviation was...
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