His elevation is higher than 1600, where there is less oxygen and, air which technically contains oxygen, and the fact that elevation means going “up”.

6 0

2 years ago

How do I do this <br> X+y=-4<br> 3x-6y=15

avanturin [10]

Answer:

x=-1, y=-3. (-1, -3).

Step-by-step explanation:

x+y=-4

3x-6y=15

---------------

x=-4-y

3(-4-y)-6y=15

-12-3y-6y=15

-12-9y=15

9y=-12-15

9y=-27

y=-27/9

y=-3

x+(-3)=-4

x-3=-4

x=-4+3

x=-1

8 0

2 years ago

Find the area of the triangle to the nearest tenth.

andreyandreev [35.5K]

Answer:

42.4

Step-by-step explanation:

1) use this formula of Area of the triangle:

$A=\frac{1}{2} a*b*sin(a,b)$

2) using the formula described above:

A=0.5*14*11*0.55≈42.4 (mm²)

5 0

2 years ago