Answer:
8
Step-by-step explanation:
15x-31+9×+11+×=180
25×-20=180
25×=200
×=8
15(8)-31=89
9(8)+11=83
8
Answer:
Answer: 216 cm2 (square centimetres
, in your question you had to put cm3, cubic centimetres, it's IMPORTANT )
Step-by-step explanation:
A perfect cube by definition has 3 equal dimensions, as an immediate rule: volume and total surface are equal, only the unit of measure changes (cubic for the volume, square for surface).
But let's calculate it anyway:
Volume = Edge * Edge * Edge = length * width * depth =
(remember: all edges are equal in this case)
so Edge = ![\sqrt[3]{Volume}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7BVolume%7D)
in your example Edge =
= 6cm
So the surface of one side is 6*6 = 36
There are 6 sides in total, so the total surface is 6*36 = 216 
Note: I call them "edges" but in case of a cube most say just "length"
Multiply 4.51 by 3.4
That's all it is asking you
Answer:
-3fg
Step-by-step explanation:
I can't tell exactly what you're trying to say but if you're trying to say:
g x (f x (-3)), then here's how you do it:
g x (f x (-3))
Multiplying a positive and a negative equals a negative: (+) x (-) = (-), then use the commutative property to reorder the terms.
g x (-f x 3)
g x (-3f)
Multiplying a positive and a negative equals a negative: (+) x (-) = (-), the use the commutative property to reorder the terms.
-g x 3f
-3fg