Mathematics
Mathematics, 16.12.2019 20:31, Teedollasign

60. % of boys number of girls 400 number of boys and total number of students

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Mathematics, 21.06.2019 12:30, 1hannacarson
Muscles, a membership-only gym is hoping to open a new branch in a small city in pennsylvania that currently has no fitness centers. according to their research approximately 12,600 residents live within driving distance of the gym. muscles sends out surveys to a sample of 300 randomly selected residents in this area (all of who respond) and finds that 40 residents say they would visit a gym if one was located in their area. based on the past survey research, muscles estimates that approximately 30% of these respondents would actually join the gym if they opened one in the area. based on this information and the results of the sample survey, about how many residents should muscles expect to join its new branch? a) 134 b) 504 c) 1,680 d) 3,780
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Mathematics, 21.06.2019 22:00, JOEREACH
Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2
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Mathematics, 21.06.2019 22:30, lekepius3715
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by Ò’4 to get Ò’16x Ò’ 4y = Ò’80 multiply the second equation by Ò’1 to get Ò’4x Ò’ y = Ò’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by Ò’1 to get Ò’2x Ò’ 4y = Ò’14
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Mathematics, 21.06.2019 23:30, zimbabwayjerry
Written as a simplified polynomial in standard form, what is the result when (2x+8)^2(2x+8) 2 is subtracted from 8x^2-38x 2 βˆ’3?
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