How to calculate the volume with the weight of water

How to calculate the volume with the weight of water

I don't know whether your said weight unit is n or kg. If it is kg, use the formula:
V = m / ρ is calculated directly, where ρ = 1000kg / m3. In algebra, you can substitute 1000. M is the mass, that is, how many kg
If the weight is in N, divide the weight by 10 to get the mass kg, and then use the above formula to calculate

Using multiplication to complete the table below, what rules can you find?
× 3 2 1 0 -1 -2 -3
3 9 6 3 0 -3
2 6 4 2
1 3 2 1
0
-1
-2
-3
I know how to fill in, but the topic requires writing rules, how to write?

× 3 2 1 0 -1 -2 -3
3 9 6 3 0 -3 -6 -9
2 6 4 2 0 -2 -4 -6
1 3 2 1 0 -1 -2 -3
0 0 0 0 0 0 0 0
-1 -3 -2 -1 0 1 2 3
-2 -6 -4 -2 0 2 4 6
-3 -9 -6 -3 0 3 6 9
Law: commutative law of multiplication. In multiplication, the position of two multipliers is exchanged, and the product remains unchanged

Given the function f (x) > lnx-x + K / 2x ^ 2, (1) if k = 2, find the tangent at the curve (1, f (1))
2) If the function f (x) is increasing in the domain of definition, the value range of K is obtained
3) Finding monotone interval K ≥ 0 of function f (x)

f'(x)=1/x-1+kx
1)k=2,f'(1)=1-1+2=2
f(1)=-1+1=0
So the tangent is; y = 2 (x-1) = 2x-2
2) The domain is x > 0
f'(x)=(kx^2-x+1)/x>=0
That is KX ^ 2-x + 1 > = 0
First, k > 0, then delta = 1-4k = 1 / 4
So the range of K is: k > = 1 / 4
3) When k > = 1 / 4, the function increases monotonically from 2)
0

How to convert the cube of 0.6g/cm = the cube of 0.6 × 10 kg / M,

1 cubic meter = 100 * 100 * 100 cubic centimeter = 1000 * 1000 cubic centimeter
Therefore: 0.6g/cm3 = 0.6 * 1000 * 1000g / m3 = 0.6 * 1000kg / m3

&What does amp; amp; amp; quot mean

Quotation is an abbreviated form, there are two kinds of 1, quotation 2, quoted 1, quotation: noun, the first meaning: quotation, quotation, the second meaning: quotation, quotation, quotation, the third meaning: Quotation (report), quotation, valuation sheet, the fourth meaning: (fill in the blank) block 2, quoted: verb, the first meaning

How to calculate the first two then one method of triple integral
Calculate the triple integral: (x + y + Z) dxdydz; the integral region is: x ^ 2 + y ^ 2 + Z ^ 20); how to use the first two then one method? Why is the result calculated by the first two then one method different from that calculated by spherical coordinates?
Root sign (x ^ 2 + y ^ 2) 0);

Slicing method (first two then one): Here you should pay attention to the fact that the changes of the cross section of the cone and semicircle are different, and they need to be divided into two parts. Projection method (first one then two): spherical coordinate method: the equations of projection method and spherical coordinate method are written in one stroke, and their ranges of change are consistent

Light years are astronomical_____ Company

Distance unit: light can travel 300000 kilometers in a second. It can go around the earth about seven and a half times in a second. It takes about eight and a half minutes for light to travel from the earth to the sun

What's the solution of 9:1 + 3:2 + 99:1 + 999:1 + 9999:1

9 1 / 3 + 3 2 / 3 + 99 1 / 3 + 999 1 / 3 + 9999 1 / 3
=10-2 / 3 + 100-2 / 3 + 1000-2 / 3 + 10000-2 / 3 + 3 and 2 / 3
=10 + 100 + 1000 + 10000-2 / 3 × 4 + 3 and 2 / 3
=11110+1
=11111

Lagrange's Mean Value Theorem
Let f (x) be continuous on [0,1] and differentiable in (0,1), and f (0) = 0, f (1) = 1. It is proved that for any given positive number a and B, there are unequal real numbers ξ, η in (0,1), such that a / F '(ξ) + B / F' (η) = a + B

If it is to prove that AF '(ξ) + BF' (η) = a + B, I can prove it, but I can't prove your title

With three sides are 7 / 6 decimeter square cardboard put together into a rectangle, the rectangle's perimeter is () decimeter, the area is () flat

With three sides are 7 / 6 decimeters of square cardboard put together into a rectangle, the circumference of the rectangle is (7 / 48) decimeters, the area is (49 / 108) square decimeters