What is the length of a side of a cube with volume 729 cm3

Answers

Answer 1

Answer: solution:
v = l x w x h
all cube sides are equal:
v = length^3
given v = 729 cm3
length = cube root (729)
length = 9 cm

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Plz really ned help on this really easy!! simplify: 4(5x + 12) Thank you all in advance!!!

Least to greatest

1/2 0.4. 30%

Answers

1/2=50/100=0.5
0.4=0.4
30%=30/100=0.3

0.5,0.4,0.3 order
0.3,0.4,0.5

aka
30%, 0.4, 1/2

I would change all these to decimals. 1/2 is 0.5, 0.4, and 30% is 0.3
Therefore, least to greatest, it is 30%, 0.4, and 1/2. Good luck!

Why is 4/6 less than 5/7

Answers

If you take 4/6, you divide so it will be 0.6667... and then if you take 5/7 you divide again, and then it will be 0.7143...

lcm = 2 x 3 x 7 = 42

4/6 = 28/42
5/7 = 30/42

28/42 is less than 30/42
4/6 is less than 5/7

Find the surface area of the pyramid

Answers

area of base + (area of triangle surface) = surface area of a pyramid
3 * 3 + (3 * 6 ÷ 2 * 4) = 45
The surface area of the pyramid is 45² yd.

)Add.

Express your answer in simplest form.

3 3/4+2 1/2

Answers

:D The answer is, 6 1/4. :D

D is the answer

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How many tens in 876

Answers

There are 87.6 tens in 876.

There are 7 tens in 876 because 6 is the ones 7 is the tens and 8 is the hundreds

Solve for x and y please!

Answers

Answer:

$x = 8$

$y=2√(3)$

Step-by-step explanation:

The figure is composed of 3 Right triangles. To find the values of the variables x and y we use the Pythagorean theorem to propose one equation.

$x^2 =4^2 + (4√(3))^2$

Now we solve for x

$x=\sqrt{4^2 + (4√(3))^2}$

$x=√(16 +16*3)\n\nx=√(64)\n\nx=8$

Let's call z at the angle opposite to y

Then we have that:

$sin(z) =(opposite)/(hypotenuse)$

Where

$hypotenuse = 8$

$opposite=4$

$sin(z) =(4)/(8)$

$z=sin^(-1)((1)/(2))$

$z=30$

Now we use this angle to find the length y

$sin(z) =(opposite)/(hypotenuse)$

Where in this case

$hypotenuse = 4√(3)$

$opposite=y$

$z=\°30$

$sin(30\°) =(y)/(4√(3))$

$y=sin(30\°)*4√(3)$

$y=2√(3)$

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