Answer:
Step-by-step explanation:
January 15, 2012 4:31PM
I assume you want the area of the sector with angle 120o and radius 9 cm:
120o is 120/360 = 1/3 of a full circle.⇒ area of sector is 1/3 area of full circle
⇒ area_of_sector = 1/3 x π x radius2 = 1/3 x π x (9 cm)2
= 27π cm2
≈ 84.82 cm2
Answer:
Volume of the cylinder = 62.4 cm³
Step-by-step explanation:
Volume of a cylinder = area of base × height of the cylinder
Area of base = 15.6 square centimeters
Height of the cylinder = 4 centimeters
Volume of a cylinder = area of base × height of the cylinder
= 15.6 cm² × 4 cm
= 62.4 cm³
Volume of the cylinder = 62.4 cm³
Constants don't change
2 is the only constant
6a is not, because a could be 1 or 4 or something
Answer:
g(3)=31.5-3
Step-by-step explanation:
first you want to find g(1) or g(x). all you have to do for this is divide every number by two, since 2/2 is 1.
g(1)=10.5-1
now to find g(30 you just multiply it all by 3.
g(3)=(10.5-1)*3
g(3)=31.5-3.
Measure of angle is 6 less than 5 times its complement,
Equation is:
A= 5 x (90 - A) - 6
Solve for A.
A=5(90-A)-6
A=450-5A-6
Add 5A to both sides
6A=444
A=74°
Now the complementary angle=90°-74° =16°
Answer: 16°
