Hypothetical elements x and y form a molecule xy2, in which both y atoms are bonded to atom x (and not to one another). the x—x distance in the elemental form of x is 2.04 å, and the y—y distance in elemental y is 1.68 å. what would you predict for the x—y distance in the xy2 molecule?

answer: the correct one is a

step-by-step explanation:

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

think about the doctor who treated the major and the speaker in the short story "in another country." put yourself in the shoes of the doctor, and based on what you read in the story, write what you think his thoughts about the major and the speaker would be. use the following vocabulary in your response and change the form of these words as needed: detached resign withered

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb