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Zigmanuir [339]
3 years ago
10

If x+y=12 and xy=27 . find x^3+y^3pls help with steps ​

Mathematics
2 answers:
Ivan3 years ago
8 0

Answer:

Step-by-step explanation:

use formula

x^3+y^3=(x+y)^3-3*x*y(x+y)

=12^3-3*27(12)

=1728-972

=756

luda_lava [24]3 years ago
6 0

Answer:

x^3 + y^3 = 756

Step-by-step explanation:

Given that,  x+y=12 and xy=27

We know that,

( x + y )^3 = x^3 + y^3 + 3xy(x + y)

∴ 12^3 = x^3 + y^3  + 3 * 27 * 12

=> 1728  = x^3 + y^3 + 972

x^3 + y^3 = 1728 - 972

==>  x^3 + y^3 = 756

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irina1246 [14]

If the linear equation with one variable is x / 4 + 2 = –2. Then the value of x will be negative 16.

<h3>What is simplification?</h3>

Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.

The equation is given below.

x / 4 + 2 = –2

Solving for x, we have

x / 4 + 2 = –2

     x / 4 = – 2 – 2

     x / 4 = – 4

          x = – 4 × 4

          x = – 16

More about the simplification link is given below.

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5 0
2 years ago
If a bus travels to a town 29 miles away, how long will it take to get there going 45 mph?
m_a_m_a [10]
S=d/t
45=29/t
t=45/29
convert to min

t=45/29 *60=38.66min
5 0
3 years ago
A triangle has sides with lengths of 4 inches, 14 inches, and 17 inches. Is it a right triangle?
irga5000 [103]
Yes it is because 2 sides would be the legs while 1 side is the hyptonuese so in this case 4 is a leg and 14 and 17 is the hyptonuese
5 0
3 years ago
What is nine plus ten? If you get it right I’ll give you brainliest
Finger [1]

Answer:

19

Step-by-step explanation:

ok is this just a joke?

nine plus ten

9 + 10 = 19

7 0
3 years ago
Victoria and Georgetown are 67.2 miles from each other. How far apart would the cities be on a map that has a scale of 0.9 inche
Artemon [7]

Answer: 5.76 miles

Step-by-step explanation:

Let the distance between Victoria and Georgetown on the map be represented by x.

The information given in the question can then be formed into an expression which will be:

0.9/x = 10.5/67.2

Cross multiply

(10.5 × x) = 67.2 × 0.9

10.5x = 60.48

x = 60.48/10.5

x = 5.76

The answer is 5.76 miles

7 0
3 years ago
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