3 years ago

What if the length of each side of the cube?

1 answer:

4 0

I think the length of each side of the square would be 7 inches. because 294/6= 49. The perimeter of each square is 49 so 49 to the square root is 7. So I think that's why each length is 7in. Sorry if I'm incorrect

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How to solve 2/3:x::4.5:2 and 2/3%:1/5::50:x

solong [7]

A) x = 0.296

B) x= 15

Step-by-step explanation:

Step 1:

(2/3) : x :: 4.5 :2

By using expansion method,

(2/3) × 2 = 4.5 x

x= (2/3) × 2 / 4.5

x = 0.296

Step 2:

(2/3) : (1/5) :: 50 :x

By using expansion method,

(2/3) x = (1/5) × 50

x= (1/5) × 50 / (2/3)

x = 15

7 0

3 years ago

Which expression is equivalent to (5x^3)(2x)^3

Elanso [62]

Answer:

$\large\boxed{(5x^3)(2x)^3=40x^6}$

Step-by-step explanation:

$(5x^3)(2x)^3\qquad\text{use}\ (ab)^n=a^nb^n\\\\(5x^3)(2^3x^3)=(5x^3)(8x^3)\qquad\text{use commutative law}\\\\=(5\cdot8)(x^3x^3)\qquad\text{use}\ a^na^m=a^{n+m}\\\\=40x^{3+3}=40x^6$