Calculate work of push-up if she weighs 450 N and elevates her shoulders 0.5 meters from the ground.

225 joules

Step-by-step explanation: the work formula is force times distance and the force is 450 and the distance is .5 so the answear is 450J

225J

Step-by-step explanation:

work=force×distance

450×0.5

=225

hope this helps

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1/8 3/16 3/4

step-by-step explanation:

you put them as all the same denominator and multiply

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