3 years ago

X-2y=0 ,x²-y²=3by step

Mathematics

1 answer:

masya89 [10]3 years ago

5 0

Answer:

x=2, y=1

x=-2, y = -1

Step-by-step explanation:

x - 2y = 0

x = 2y

x² - y² = 3

(2y)² - y² = 3

3y² = 3

y² = 1

y = 1 or y = - 1

x = 2 or x = -2

You might be interested in

Point A is located at (-3, 9) and point B is located at (12,-10). Find the distance from point A to point B rounded to the neare

Nezavi [6.7K]

Answer:

Step-by-step explanation:

$\sqrt{(( - 10) - 9)^{2} + (12 - ( - 3)) ^{2} }$

$\sqrt{( - 19)^{2} + (15)^{2} }$

$\sqrt{361 + 225}$

$\sqrt{586}$

$24.2074$

7 0

2 years ago

Suppose you buy a phone for $200 and its value depreciates linearly. If the phone is worth $115 after four years, then what is t

vredina [299]

Answer:

$72.5

Step-by-step explanation:

Initial value = $200
Depreciated value after 4 years = $115

<u>Since depreciation rate is linear, then:</u>

200 - 4x = 115
4x = 200 - 115
4x = 85
x = 85/4
x = 21.25

<u>Value after 6 years:</u>

200 - 6*21.25 = 200 - 127.5 = $72.5

3 0

3 years ago

What is the answer 4.6n+7.1n+12.8n-1.6n= ?

Alex787 [66]

The answer would be=22.9n

4 0

3 years ago

A function y = g(x) is graphed below. What is the solution to the equation g(x) = 3? x = 3 3 < x < 5 3 ≤ x ≤ 4 3 ≤ x <

Fittoniya [83]

The Answer is: x = 3

8 0

3 years ago

Find the Area of the figure below, composed of a rectangle with two semicircles removed. Round to the nearest tenths place.

Allisa [31]

Answer:

21.8

Step-by-step explanation:

hii so basically first we find the area of the 9 by 8 and subtract the area of the semicircles.

area of circles are πr^2, so in this situation

π4^2 which is 16π.

with this, the semicircle which is half a circle would give us

16π/2 which is 8π.

but then, we have two semicircles removed so we would have as an answer:

(9*8)-8π+8π

72-16π

then you would have to round so

16π is around 50.2

so 72-50.2 is 21.8

i hope this helped you <33

6 0

2 years ago

X-2y=0 ,x²-y²=3by step​

X-2y=0 ,x²-y²=3by step