Answer:
x=5 and y=-2
Step-by-step explanation:
3x+5y=5
-(7x+5y=25)
-4x=-20
x=5
plug 5 into one of the equations. 3(5)+5y=5
y= -2
Answer:
2b+9
Step-by-step explanation:
Answer:
Step-by-step explanation:
4x - 2y = 6
-2y = -4x + 6
y = -4x/-2 + 6/-2
y = 2x - 3
Answer:
=579.1 cm^3
Step-by-step explanation:
V = Bh
We need to find the area of the base
The base is the triangle
B = 1/2 bh
We can find the length of the bottom by using the Pythagorean theorem
a^2 + b^2 = c^2
9^2 + b^2 = 14^2
b^2 = 14^2 - 9^2
b^2 = 115
Taking the square root
b = sqrt(115)
B = 1/2 bh
=1/2 sqrt(115) *9
B =48.25712383
V = Bh
V = 48.25712383 * 12
=579.0854859
To the nearest tenth
=579.1 cm^3