Y=(1/2)x^2 + 2x - 1
3x - y = 1, or y=3x-1
substitute
3x-1=(1/2)x^2+2x-1
0=(1/2)x^2-x
0=x(0.5x-1)
x=0,2
y=2+4-1=5
3(2)-1=5.
When x=2 y=5 (2,5) is one solution
when x=0, y=-1, (0,-1) is the other solution
You square root the whole equation.
<span>y^2=100-x^2
</span>√y^2= √100 - √x^2
<span>y=10-x</span>
Answer:
Choice D. Total surface area = 8 + 8 + 4 + 4 + 2 + 2
Step-by-step explanation:
You want surface area of this rectangular prism
If you notice there are 6 faces of this prism
two faces with area 1*2 = 2
two faces with area 4*1 = 4
two faces with area 4*2 = 8
Total surface area = 8 + 8 + 4 + 4 + 2 + 2
Answer:
x = 88/45
Step-by-step explanation:
square of tangent segment = produce of entire secant and segment of secant outside circle
(GH)² = GS × GW
(13)² = 9(5x + 9)
169 = 45x + 81
45x = 88
x = 88/45
4 * g + 2 ....... or do u want me to figure what g is