2 years ago

If a large Rubik's cube has a volume of 1,331 cubic inches what is its surface area?

1 answer:

5 0

V=(4/3)pir^3
SA=4pir^2

so

given
v=1331
1331=(4/3)pir^3
times both sides by 3/4
998.25=pir^3
divide both sides by pi
998.25/pi=r^3
cube root both sides
∛(998.25/pi)=r

ok
SA=4pir^2
SA=4pi(∛(998.25/pi))²
SA=4pi(∛(996503.0625/(pi²)))
SA=4pi∛(996503.0625/(pi²))
use your calculator
SA=585.15307930795 in²

its surface area is about 585 in²

You might be interested in

Work out the value 3x10^-5 x 40,000,000 give you answer in standard form

Olenka [21]

<u>★ Solution:</u>

➣ ${\sf{3\:x\:10^{-5}\:x\:4\:x\:10^7$

➣ ${\sf{(3\:x\:4)\:x\:(10^{-5+(-7)})$

➣ ${\sf{12\:x\:10^2$

➣ ${\sf{1.2\:x\:10^3$

3 0

2 years ago

Estimate the quotient to the tenths place. Then find the quotient. Round to the nearest thousandth 3)1.066 The estimate is The q

riadik2000 [5.3K]

Answer:

Estimate = 0.4

Quotient = 0.355 ---> Approximated to nearest thousandth

Step-by-step explanation:

Question like this is better answered using attachment;

See Attachment

When 1.066 is divided by 3,

The quotient is 0.3553......

When estimating to tenths,

We stop the quotient at 0.35 then round it up.

This gives 0.4

When estimating to nearest thousandth,

We stop the quotient at 0.3553 then round it up;

This gives 0.355

7 0

3 years ago

I'm so clueless please help!

AysviL [449]

Answer:

Nothng to it just mark them

Step-by-step explanation:

8 0

3 years ago

What do I need to do to do well in Algebra II?

GaryK [48]

Ask your teacher for help or watch a video that would help or do research and study

8 0

3 years ago

Lines EC and HF are parallel CDG is congruent to dgh what is the measure of CDG

Verizon [17]

Angle ADC and EDG are congruent(vertical angles)
Same side interior angles are =180
2x+4x-30=180
6x-30=180
6x=210
x=35
CDG is congruent to DGH(alternate interior)
4x-30
4(35)-30
140-30
=110

5 0

2 years ago