A cuboid is 8 cm in height, 1 / 2 in width and 5 / 4 in width. The cuboid is () cm in width, () cm in length, () cm in edge length, () m3 in volume and () cm2 in surface area

A cuboid is 8 cm in height, 1 / 2 in width and 5 / 4 in width. The cuboid is () cm in width, () cm in length, () cm in edge length, () m3 in volume and () cm2 in surface area

Width is 8 / 2 = 4cm, length is 5 / 4 * 4 = 5cm
So the width is 4cm, the length is 5cm, the edge length is (5 + 4) * 4 + 4 * 8 = 68cm
Volume = 8 * 4 * 5 = 160 surface area 4 * 5 * 2 = 40 5 * 8 * 2 = 80
8 * 4 * 2 = 64 40 + 80 + 64 = 184cm square centimeter

The total length of the edges of a cuboid is 72 cm, and its length is 8 cm. Its width and height are equal. How many parts of its width is its length?

Width = (72-4 * 8) / (4 + 4) = 40 / 8 = 5cm
The length is 8 / 5 of the width

Is X-Y a polynomial or a monomial
Why?

There's a plus and minus sign, so it's a polynomial

What is the arc length formula of space curve in Higher Mathematics?

It's the same as the formula of plane arc length. It's in the radical form It's just a parameter Z

Is the rate of advance between adjacent volume units 1000
It's a very urgent problem
By the way, is the rate of progress between adjacent units 100
Is the rate of advance between adjacent volume units all 1000

For cubic meters, cubic decimeters, cubic centimeters, cubic millimeters
It's the same with milliliters
Yes it is.
You've got authority

Given A-B = √ 3 - √ 2, B-C = √ 2 - 2 √ 3, calculate: (a + b-2c + 3 √ 3) ^ 2
Thanks~Thanks`````

（a+b-2c+3√3）^2
=[(a-b)+2(b-c)+3√3)^2=(√3 - √2+2√2 - 4√3+3√3)^2
=(√2)^2
=2

Given that the point P is on the parabola y2 = 4x, if the distance from P to the focus of the parabola is 3, then the abscissa of P is
A.1 B.2 C.3 D.4

2p=4
So the guide line x = - P / 2 = - 1
Defined by parabola
The distance from P to the focus is equal to the isochor distance
So the distance from P to the guide line = X1 - (- 1) = 3
x1=2
Choose B

How to convert weight unit ton to volume unit liter? For example, 1 ton of water =? Liter of water

According to density,
Weight (scientifically called mass) = density × volume
The case of water is so special, because the density of water is exactly the same
1 T / m3 or 1 T / 1000 l

In 2,7,14,56, what is the factor of 56 and what is the word number

All of them

The odd functions in the following functions are: () (a) y = x & # 710; 3sinx + 1 (b) y = in (x + radical 1 + X & # 710; 2) (c) y=
(D) SiNx + cosx (in the C option - x is above e)

f(x)=ln[x+√(1+x^2)]
f(x)+f(-x)=ln[x+√(1+x^2)]+ln[-x+√(1+x^2)]
=ln{[x+√(1+x^2)][-x+√(1+x^2)]}
=ln(1+x^2-x^2)
=ln1
=0
f(-x)=-f(x)
And the domain of definition is r, symmetric about the origin
So choose B