Mathematics, 15.10.2019 09:30 u8p4
The mean mass of 8 boys is 55 kg and the mean mass of a group of girls is 52 kg. the mean mass of all the children is 53.2 kg. how many girls are there?
Answers: 2
Mathematics, 21.06.2019 21:10
Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9
Answers: 1
Mathematics, 21.06.2019 23:30
Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o
Answers: 1
Mathematics, 22.06.2019 05:30
Which answer choice listed below is thewhich answer choice listed below is the inverse function of ƒ(x) = x-3 x+3 , x ≠-3? a) ƒ-1(x) = 3 ( x+1 x-1 ), x ≠1 b) ƒ-1(x) = -3 ( x+1 x-1 ), x ≠1 c) ƒ-1(x) = 3 ( x-1 x+1 ), x ≠-1 d) ƒ-1(x) = -3 ( x-1 x+1 ), x ≠-1inverse function of ƒ(x) = x-3 x+3 , x ≠-3?
Answers: 1
The mean mass of 8 boys is 55 kg and the mean mass of a group of girls is 52 kg. the mean mass of al...
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