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xeze [42]
3 years ago
7

Expand y=(x+y)^2 and find x when y=2

Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Step-by-step explanation:

y =  {x}^{2}  +  {y}^{2}

2 =  {x}^{2}  +  {2}^{2}

2 =  {x}^{2}  + 4

Subtract 4 from both sides

- 2 =  {x}^{2}

There's no solution for x when y = 2

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Help ASAP pls :) brainly to whoever has the right answer first :D
Fed [463]

Answer:

0.02 (rational)

2 (rational)

Square root of 2 (irrational)

Square root 1/2 (irrational)

Step-by-step explanation:

Rational numbers are numbers that can be in form of a/b such that a and b are not zeros. In other words, a and b are integers ranging from 1 to infinity.

Conversely, irrational numbers are numbers that are endless and are non repeating digits after decimal point.

Thus, from the questions above;

0.02 =   \frac{2}{100}  = rational \: number

2 =  \frac{2}{1}  = rational \: number

\sqrt{2}  = 1.41421356 = irrational \: number

\sqrt{ \frac{1}{2} }  = 0.70710678 = irrational \: number

6 0
3 years ago
-4x + y = -9<br> -<br> 5x + 2y = 3<br> :<br> Solve the Linear equation
Yuri [45]
-4x+y= -9 can be turned into
y= -9 + 4x

5x+2y=3 (plug y in)
5x+2(-9+4x)=3
5x-18+8x=3
5x+8x=3+18
13x=21
divide 13 on both sides
x=1.6
6 0
3 years ago
By using (17,-13) (17,8) what is the slope
uysha [10]
Y2-y1/x2-x1

8-[-13]/17-17

21/0

this is called undefined because its denominator is zero.
4 0
3 years ago
BRAINLIEST ANSER!!! HELP ME ASAP!!! PLEASSEEE! determine the volume of a cylindrical bucket if the diameter is 8.5 inches and th
yarga [219]
The answer should be 652.2
8 0
4 years ago
A circular post in a cafeteria has a diameter of 3 feet. Which of these is
timurjin [86]

Answer:

9.42 feet

Step-by-step explanation:

The circumference is π × diameter.

3.14 × 3 = 9.42

The circumference of the circular post is 9.42 feet.

6 0
4 years ago
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