D since you said it equals seven then the possible answer is out of C or D but there wasn't a negative sign so I went with the positive answer.
First, we calculate the radius of the circle.
radius=diameter / 2
radius=44 ft / 2=22 ft.
Second; we calculate the area of a circle.
area of a circle=πr²
area of a circle=π(22 ft)²=484π ft²
Remember: 22²=22 * 22 =484
Answer: B) 484π ft²
Answer:
If a line does not have a slope of zero then it is not horizontal.
Step-by-step explanation:
Contrapositive:
If a = b then not b = not a.
Answer:
Step-by-step explanation:
3 sinθ=3 cos 2θ
sin θ=cos 2θ
sinθ=1-2sin² θ
2sin²θ+sin θ-1=0
2sin²θ+2sinθ-sinθ-1=0
2sin θ(sin θ+1)-1(sin θ+1)=0
(sin θ+1)(2 sin θ-1)=0
sin θ=-1=-sin 90=sin (180+90)
θ=270
or sin θ=1/2=sin 30,sin (180-30)
θ=30,150
solution set is {30,150,270}
