Step-by-step explanation:
a1 = 2
a2 = a1 + 9 = 2 + 9 = 11
a3 = a2 + 9 = 20
a4 = a3 + 9 = 29
a5 = a4 + 9 = 38
a6 = a5 + 9 = 47
Answer:
d
Step-by-step explanation:
Answer:
3/8 is less than 2/8 but greater than 3/12 and 5/12
Step-by-step explanation:
Answer:
√x-4+2-1=x=g-¹=(x)
Step-by-step explanation:
g(x)=(x+4)^2+1
x:
x=(x+4)^2+1
y=(x+4)^2+1
=x:x-4+2-1=x
√x-4+2-1=x=g-¹=(x)
Ok so this is conic sectuion
first group x's with x's and y's with y's
then complete the squra with x's and y's
2x^2-8x+2y^2+10y+2=0
2(x^2-4x)+2(y^2+5y)+2=0
take 1/2 of linear coeficient and square
-4/2=-2, (-2)^2=4
5/2=2.5, 2.5^2=6.25
add that and negative inside
2(x^2-4x+4-4)+2(y^2+5y+6.25-6.25)+2=0
factor perfect squares
2((x-2)^2-4)+2((y+2.5)^2-6.25)+2=0
distribute
2(x-2)^2-8+2(y+2.5)^2-12.5+2=0
2(x-2)^2+2(y+2.5)^2-18.5=0
add 18.5 both sides
2(x-2)^2+2(y+2.5)^2=18.5
divide both sides by 2
(x-2)^2+(y+2.5)^2=9.25
that is a circle center (2,-2.5) with radius √9.25
