Question 1)
I assume it asks about the circumference (of only the circle arc)
C=r*2*pi
r=2
-> C=4pi
1 Quarter only of the circle: C/4=pi=3.1
if it's the perimeter of the shape then you need to add the two 2in sides
C=3.1+2*2=7.1
2)
C=r*2*pi, but not a full circle, only semi-> divide by 2-> C=r*pi
r=30
C=30pi=94.2
3)
the radius of the semicircle is 6/2=3mm
semicircle C=r*pi=3pi
add the rectangle perimeter
3pi+2*3+6=12+3pi=21.4
4)
C=2r*pi
insert 2r=d=12
C=12pi=37.7
5)
C=2r*pi
r=10
C=20*pi~62.8
3 rotations of the wheel->
distance=C*3=188.4
Answer:<u> x=-3</u>
<u></u>
Step-by-step explanation:
2x(3x+9)=-2(2x+6)
2/3 (3x)+2/3(9)=(-2)(2x)+(-2)(6) distrubute this
2x+6=-4x+-12
2x+6=-4x-12. subtract 4 on both sides
2x+6=-4x-12
2x+6+4x=-4x-12+4x
6x+6=-12
6x+6-6=-12-6
6x=-18
6x/6=-18/6
=x=-3
Hoped this helped sorry it took me forever:)
Hi there!
The answer is B.
Since the middle length of the kite is 3 + 3 (which is 6), we find the area of both triangles and add them up.
6 × 10 ÷ 2 = 60 ÷ 2 = 30
6 × 20 ÷ 2 = 120 ÷ 2 = 60
30 + 60 = 90
The answer is B.
Hope this helps!
Triangular Prism.
Hope this helped :)
