It is grammatically correct because 4+5= 9 and 2+7=9 also. So, what this sentence is basically saying is 9=9 which will always be true. If the sentence were 4+5=9+1, then that would be grammatically incorrect because the sentence would simplify to 9=10 and 9 will never =10.
Answer:
36
Step-by-step explanation:
36 divided by 4 is 9
9-3 is 6
Answer:
Step-by-step explanation:
The angle bisector divides the segments so those on one side of it are proportional to those on the other side of it.
(x+4)/8 = (2x+1)/12
12(x +4) = 8(2x +1) . . . . . multiply by 96
12x + 48 = 16x + 8 . . . . . eliminate parentheses
40 = 4x . . . . . . . . . . . . . . add -12x-8
10 = x . . . . . . . . . . . . . . . . divide by 4
Answer:
a = 1/25
Step-by-step explanation:
The vertex form of the parabola is
y = a(x-h)^2 +k
where (h,k) is the vertex
y = a(x-2)^2 -4
We have a point on the parabola (-3,-3) so substitute this into the equation
-3 = a(-3-2)^2 -4
-3 = a(-5)^2 -4
Add 4 to each side
-3+4 = a(25) +4-4
1 = 25a
Divide each side by 25
1/25 = a
y = 1/25(x-2)^2 -4