svarner2001

01.12.2020 • 

Mathematics

Mrs. McCullough is purchasing balloons for a party. Each spherical balloon is inflated with helium. How much helium is in the balloon if
the balloon has a radius of 9 centimeters? Round to the nearest
tenth. Hint: the amount of helium a balloon can hold is its volume.
A. 37.68
B. 339.12
C. 159.2
D. 313

Ответ:

PineaPPle663

08.04.2022

Mathematics

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Here goes question 1, Part (A, B.).
Part A)
4x2 − 12x + 9
4x^2 -6x -6x + 9
2x( 2x - 3) -3(2x - 3)
(2x - 3)(2x-3)
length of each side is 2x-3

Part B)
16x^2 − 9y^2
(4x)^2 - (3y)^2
(4x - 3y) (4x+3y)
dimensions are 4x-3y, 4x+3y

Sorry couldn't help with number 2.

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