4 years ago

What is the value of x in the equation 1,331x3 − 216 = 0?

Mathematics

2 answers:

Rama09 [41]4 years ago

7 0

My answer was 6/11.

xenn [34]4 years ago

5 0

1331x^3 - 216 = 0
(1331x^3 = 216) / 1331
x^3 = 216/1331
x = cube root (216/1331)
x = 6/11
the answer is 6/11

You might be interested in

Please help me with this

horrorfan [7]

Answer:

$\dfrac{4000\pi}{3}$ ft³

Step-by-step explanation:

First, let's figure out how to get the volume of a sphere from its surface area. If r is the radius of our sphere, then

The formula for a sphere's surface area is $A = 4\pi r^2$

The formula for a sphere's volume is $V=\frac{4}{3}\pi r^3$

So to get from area to volume, we have to divide the area by 3 and then multiply it by r. Mathematically:

$V=\frac{A}{3}r$

Before we solve for V though, we need to find the radius of our sphere. Thankfully, we're given the surface area - $400\pi$ ft² - so we can use the area formula to find that radius:

$A=4\pi r^2=400\pi\\r^2=100\\r=10$

And now that we have our radius, we can put it into our volume formula to find

$V=\frac{A}{3} r=\frac{400\pi}{3}(10)=\frac{4000\pi}{3}$ ft³

4 0

3 years ago

benny bought 8 new basketball trading cards to add to his collection. There are now only 44 cards left.How many cards did benny

Mashcka [7]

So the equation: (x+8) divided by 2 =24

5 0

3 years ago

The question is write the name of each term in the blank 938 +347 722 =2007

galben [10]

Answer:

Step-by-step explanation:

938 + 347 = 1285

2007 - 1285 = 722

CHECK:

938 + 347 + 722 = 2007

8 0

3 years ago

Please help me 19 points for whoever answers number 3

Nastasia [14]

15%

amount error is guess subtract actual amount 198-172 = 26
26/172 = 0.15
0.15 x100 = 15%

7 0

3 years ago

Read 2 more answers

a dvd costs twice as much as a music cd. Jack buys 2 dvds and 2 cds and spends $45. Determine how much one cd costs. in dollars

VMariaS [17]

$dvd=d \\ cd=c \\ \\ \left \{ {{d=2c} \atop {2d+2c=45}} \right. \\ \\ 2(2c)+2c=45 \\ 4c+2c=45 \\ 6c=45 \\ c=7.5 \\ \\ d=2(7.5) \\ d=15$

One CD costs $7.50.
One DVD costs $15.00.

3 0

4 years ago

Read 2 more answers