What is the cube of trapezoid? Now I'm digging, trapezoidal, mouth is 8 meters, bottom is 1 meter, height is 6 meters, how many square?

What is the cube of trapezoid? Now I'm digging, trapezoidal, mouth is 8 meters, bottom is 1 meter, height is 6 meters, how many square?

Your calculation conditions are not enough. Let me assume first. If the calculation is wrong, please calculate according to the following volume formula
Suppose that the opening of the trapezoidal solid you want to dig is 8 m * 8 m body shape, and the bottom is 1 m * 1 m square. According to the following formula, it is 146 square
The volume formula of prism is as follows
V = [S1 + S2 + open radical (S1 * S2)] / 3 * h
Note: V: volume; S1: upper surface area; S2: lower surface area; H: high

Proof: when n is a positive integer, the cube minus n of N must be a multiple of 6

N ^ 3-N = n (n ^ 2-1) = n (n + 1) (n-1) is (n-1) * n * (n + 1). See? The result of multiplying three consecutive numbers must be a multiple of 6. Because at least one of these three numbers must be a multiple of 2, and one of them must be a multiple of 3. The result must be a multiple of 6. Of course, we can't say that, if we tell you so, don't

As shown in the figure, in the plane rectangular coordinate system, given the points a (- 4,0), B (0,3), make continuous rotation transformation for △ AOB, and get the triangles (1), (2), (3), (4),..., respectively Then the coordinates of the right angle vertex of the seventh triangle are______ The coordinates of the right angle vertex of the (2011) triangle are______ ．

∵ a (- 4,0), B (0,3), ∵ AB = 5, ∵ the coordinates of the right angle vertex of the third and fourth right triangle are (12,0), ∵ rotate △ AOB three times continuously to return to the original state, ∵ the abscissa of the right angle vertex of the seventh triangle is equal to 12 × 2 = 24, ∵ the abscissa of the seventh triangle is equal to 12 × 2 = 24

1.2-0.9 + x = 0.8

0.3+x=0.8
x=0.8-0.3
x=0.5

Given that vector group A1, A2, A3 and A4 are linearly independent, what is the rank of vector group 2A1 + a3 + A4, a2-a4, A3 + A4, A2 + a3, 2A1 + A2 + a3

(2a1+a3+a4,a2-a4,a3+a4,a2+a3,2a1+a2+a3) = (a1,a2,a3,a4)K
K=
2 0 0 0 2
0 1 0 1 1
1 0 1 1 1
1 -1 1 0 0
Since A1, A2, A3, A4 are linearly independent, then R (2A1 + a3 + A4, a2-a4, A3 + A4, A2 + a3, 2A1 + A2 + a3) = R (k)
Just calculate the rank of K

Try to determine the number of single digits of the 93rd power of 19 + the 19th power of 93?
Given that x + 3y-2 = 0, find the value of X of 4 and y of 64
2X + 3 of 2 - 2x + 1 of 2 = 384 (find the value of x)

The odd power of 19 is 9, even power is 1, the first power of 93 is 3, even power is 9, odd power is 1, so 9 + 1 = 10 bits are 0x + 3y-2 = 0 x + 3Y = 24 ^ 3 = 64 ^ x * 64 ^ y = 4 ^ x * 4 ^ 3 * y = 4 ^ (x + 3Y) = 4 ^ 2 = 16 2 ^ (2x + 3) - 2 ^ (2x + 1) = 384 (2 ^ 2x) * 2 ^ 3 - (2 ^ 2x) * 2 = 384 (2 ^ 2)

If the average number of samples X1 + 1, X2 + 2... Xn + 1 is 10, and the variance is 2, then find the value of another sample 2x1 + 3
Mean and variance

E(X)=21
D(X)=8

Let f (x) = loga x (a > 0, a is not equal to 1), if f (x1) + F (x2) = 1, then f (x1 ^ 2) + F (x2 ^ 2)=

F (x1 ^ 2) + F (x2 ^ 2) = log a X1 ^ 2 + log a x2 ^ 2 = 2log a X1 + 2log a x2 = 2 (log a X1 + log a x2) = 2 (f (x1) + F (x2)) = 2

As shown in the figure, take sides AC and BC of △ ABC as one side respectively, and make square ACDE and cbfg outside △ ABC. Point P is the midpoint of EF. Prove that the distance from point P to AB is half of ab

Then Er ∥ PQ ∥ FS, ∵ P is the midpoint of EF, ∥ q is the midpoint of RS, ∥ PQ is the median line of trapezoidal EFSR, ∥ PQ = 12 (ER + FS), ∥ AE = AC (equal side length of square), ∥ aer = ∥ cat (equal residual angle of the same angle), ∥ r = ∥ ATC = 90 °, ∥ RT △ aer ≌ RT △ cat (AAS), the same as RT △ BFS ≌ RT △ CB T，∴ER=AT，FS=BT，∴ER+FS=AT+BT=AB，∴PQ=12AB．

Given that the 5th power of (x-1) = the 5th power of AX + the 4th power of BX + the 3rd power of Cx + the 2nd power of DX + ex + F, find the value of (1) a + B + C + D + e + F and (2) a + B + E

When x = 1
The fifth power of (x-1) = a + B + C + D + e + F = 0
a = 1,b=-5,e =5,a+b+e =1