A postcard has an area of 24 square inches. Two enlargements of the
postcard have areas of 54...
Mathematics, 20.03.2020 10:13 zozo9987
A postcard has an area of 24 square inches. Two enlargements of the
postcard have areas of 54 square inches and 96 square inches. In each
postcard, the length is 1 1/2 times the width. Which of the following could
be the dimensions of the postcard or one of the enlargements? Mark all
that apply.
A.6 inches by 9 inches
B. 10 inches by 15
C. 8 inches by 12
D.6 inches by 12
E.4 inches by 6 inches
Answers: 1
Mathematics, 21.06.2019 13:30
For which rational expression is -2 an excluded value of x?
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Mathematics, 21.06.2019 14:00
Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .
Answers: 2
Mathematics, 21.06.2019 23:00
Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above
Answers: 2
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