Answer:
D
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ( where r is the radius ) , then
x² + y² = ( )² , that is
x² + y² = 249 → D
Answer:
x is-4,and ans for y is 1
Step-by-step explanation:
So there's 20, 21, 22, 23, 24, 25, 26, 27 7 numbers total
so there are 3 numbers greater then 24 which would be 3/7= 0.42857....
There is only 1 number less then 21 which would be 1/7= 0.14285....
3(2+n)-2(5-2n)
Mutiply the first bracket by 3
(3)(2)= 6
(3)(n)= 3n
Mutiply the second bracket by -2
(-2)(5)= -10
(-2)(-2n)= 4n
6+3n-10+4n
6-10+3n+4n ( combine like terms )
-4+7n or 7n-4
Answers: -4+7n or 7n-4
Answer:5314.4563≈5314
Step-by-step explanation: