Answer: The coordinates of the vertex are : (-1,-2)
Step-by-step explanation: To find the x coordinate, we use the formula:
Xv = -b/2a = -6/(2.3) = -6/6 = -1
Replacing x by -1, we write:
y = 3. (-1)^2 + 6. (-1) +1 = 3 - 6 + 1 = -2
Answer:
1.C=10cm
3.b=12cm
5.x=5cm
6.x=8mm
Step-by-step explanation:
a2 + b2 =c2
82 + 62=c2
64 +36 =c2
[100=c2] Square root
c=10cm
Great Job! they are all correct. :)
Good luck in your next tests.
H=-6 is the answer after substituting
