Answer:
x^2 + y^2 - 6x + 3y -13 =0
Step-by-step explanation:
we have formula when endpoints of diameter of circle are given.
(x-x1)(x-x2)+(y-y1)(y-y2)=0
put value of x1,x2 and y1 and y2.
=(x-5)(x-1) + {y-(-6)}(y-3)=0
=(x^2 -x - 5x +5) + ( y+6)(y-3)=0
=x^2 - 6x +5 + y^2 - 3y +6y - 18=0
=x^2 + y^2 - 6x + 3y -13=0
required equation..
1) change 65% to a decimal = .65
2) .65 • 60 = 37.2 questions need to be right
3) since she got 42 correct, that is greater than 37.2, so she passed.
OR
1) 42/60 = 0.7
2) 0.7 to a percent = 70%
3) since she got a 70% on the test, she passed.
1. 64
2.32
3. 16
4. 8
5. 4
6. 2
The school has 156 professors and 286 lectures
Answer:
9
Step-by-step explanation:
5 - 3(-2) + 1-3
5 + 6 - 2
11 - 2
9
