<span>What is the value of c?
5x2 - 3y2 - 20x + 6y + 2 = 0
Select one:
a. 2
b. 4
c. √4
d. √8
This was an older question and someone said the answer was D and I got it right.</span>
Answer:
9
Step-by-step explanation:
if I'm just good at math I might be able to help you
Step-by-step explanation:
5 (-3 x -2) - (x-3) = -4 ( 4x + 5) +13
-15x-10-x+3=-16x-20+13
-15x+16x-x=-20+13+10-3
0=0
no solution
Hello from MrBillDoesMath!
Answer:
11
Discussion:
Solution by distance formula:
d = sqrt( (x2-x1)^2 + (y2-y1)^2)
= sqrt ( (-1 - (-1)
)^2 + (4 - (-7))^2 )
= sqrt ( ( -1 + 1) ^2 + (4+7)^2)
= sqrt ( 0^2 + 11^ 2 )
= sqrt ( 11^2)
= 11
Solution by contemplation!
Note the x coordinate of both points is the same (i.e. -1) This means the line joining the points is vertical and its length is simply the difference of the y coordinates: 4 - (-7) = 4 + 7 = 11
Thank you,
MrB
