If (x^2 - y^2 = 10 and (x + y) =2 find x and y?

Mathematics

1 answer:

vampirchik [111]2 years ago

5 0

Answer:

x = 3.5 ; y = -1.5

Step-by-step explanation:

You might be interested in

"Come back to me" was written by?

Vilka [71]

Zac maloy, espen lind, amund bjorklund.

7 0

3 years ago

Joseph has 24 cousins he has 6 more females than males how many females does he have?

Brums [2.3K]

Given that Joseph has 24 cousins, and he has 6 more females than males, the number of females will be obtained as follows;
suppose he had x males, number of females will be x+6.
The total will be:
x+(x+6)=24
x+x+6=24
2x+6=24
2x=24-6
2x=18
x=18/2
x=9
thus the number of male cousins is 9, the number of female cousins will be 9+6=15
We therefore conclude that he has 9 male cousins and 15 female cousins

6 0

3 years ago

Does anyone know the answer to this!?

PolarNik [594]

Answer:

$|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|$

Step-by-step explanation:

You can use these Cramer's formulas to solve for x and y:

$x=\dfrac{|A_x|}{|A|},\\ \\y=\dfrac{|A_y|}{|A|},$

where

$|A|=\left|\begin{array}{cc}12&-13\\ \\17&-22\end{array}\right|\\ \\ \\|A_x|=\left|\begin{array}{cc}7&-13\\ \\-51&-22\end{array}\right|\\ \\ \\|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|$