Answer:
Step-by-step explanation:
diameter=7.3cm
radius=
=
=3.65cm
angle =120°
area=
× 
=
× 
×
=
≅
Answer:
24
Step-by-step explanation:
6+6 =12
12+6 = 18
18+6 = 24
Answer:11
Step-by-step explanation:
Boys : girls=7:1
Sum of ratio=7+1=8
Let them number of girls be y
Then they number of boys=y+66
Total number of pupils=y+y+66
Total number of pupils=2y+66
Number of girls=(girls ratio)/(sum of ratio) x (total number of pupils)
y=1/8 x (2y+66)
Cross multiply
y x 8=2y + 66
8y=2y + 66
Collect like terms
8y-2y=66
6y=66
Divide both sides by 6
6y/6=66/6
y=11
The number of girls is 11
Answer:
height of second rectangular prism is 5 meters
Step-by-step explanation:
I thought it would be c but try b or a
