Answer:
C. center: (7/2, -3/2); radius: sqrt(74)/2
Step-by-step explanation:
x^2 + y^2 - 7x + 3y - 4 = 0
We can put the equation in standard form by completing the square in x and in y.
x^2 - 7x + ___ + y^2 + 3y + ___ = 4 + ___ + ___
x^2 - 7x + (7/2)^2 + y^2 + 3y + (3/2)^2 = 4 + (7/2)^2 + (3/2)^2
(x - 7/2)^2 + (y + 3/2)^2 = 16/4 + 49/4 + 9/4
(x - 7/2)^2 + (y + 3/2)^2 = 74/4
(x - 7/2)^2 + (y + 3/2)^2 = (sqrt(74)/2)^2
Answer: center: (7/2, -3/2); radius: sqrt(74)/2
According to question
total flowers = 23x
23x - 46 = 138
23x = 138 + 46 = 184
x = 8
8 flower in each bunch
hope this helps you ...
6 - 3 = 3
5/6 - 1/3 = 5/6 - 2/6 = 3/6 = 1/2
answer is : 3 1/2 ( or 7/2)
Answer:
D
Step-by-step explanation:
