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Answer:
49
Step-by-step explanation:
cos(x)=31/47
x=cos^-1 (31/47)
Answer:
36 for area, 66 for surface area.
Step-by-step explanation:
I am not sure what it is asking, but if this is what you were asking for here it is. Surface area is harder to explain, but volume is multiply all dimensions.
Hope this is what it was asking!
Let us take each number as x = 2x , 3x, 4x
(2x)³+(3x)³+(4x)³=12375
8x³+27x³+64x³=12375
99x³=12375
x³=12375/99
=125
x =∛125
x=5
2x=2×5=10
3x=3×5=15
4x=4×5=20
therefore, the three numbers are 10,15 and 20 .....
Hope it helps !!
