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3 years ago

Find the area of the sector with a central angle of 120° and a radius of 8 inches. Leave in terms of π

Mathematics

2 answers:

soldier1979 [14.2K]3 years ago

8 0

Centralangle/360 times area of circle=sector area

120/360 times pi8²=
(1/3)(64pi)=64pi/3 square inches

velikii [3]3 years ago

4 0

Answer:

π in2

Step-by-step explanation:

The formula for the area of a sector is

360

πr2 where n is the measure of the central angle. A =

120

360

π(82) =

π in2.

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Vera_Pavlovna [14]

Answer:

Jack's final bank account amount will be $54,782.50, earning $7,459.31 in interest.

General Formulas and Concepts:
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Step-by-step explanation:

Step 1: Define

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[Compounded Interest Rate Formula] Substitute in variables:
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Evaluate:
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Learn more about Algebra I: brainly.com/question/27710663

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2 years ago

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olga55 [171]

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Step-by-step explanation:

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4 years ago

A math class had 5 girls and 5 boys in the seventh grade and 1 girl and 7 boys in the eight grade. The teacher randomly selects

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Answer:

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Step-by-step explanation:

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3 years ago

M(7, 5) is the midpoint of line RS The coordinates of S are (8, 7). What are the coordinates of R?

Shtirlitz [24]

Answer:

The coordinates of point R are (6 , 3)

Step-by-step explanation:

* Lets revise the rule of the mid-point

- The mid point (x , y)of a line whose end points are $(x_{1},y_{1})$

and $(x_{2},y_{2})$ is $(\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})$

∵ M is the mid point of line RS

∵ The coordinates of point M are (7 , 5)

∴ x = 7 and y = 5

∵ The coordinates of point R are $(x_{1},y_{1})$

∵ The coordinates of point S are (8 , 7)

∴ $(x_{2},y_{2})$ = (8 , 7)

∴ $x_{2}=8$ and $y_{2}=7$

- By using the rule above

∵ $x=\frac{x_{1}+x_{2}}{2}$

∵ $7=\frac{x_{1}+8}{2}$

- Multiply both sides by 2

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- Subtract both sides by 8

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- Multiply both sides by 2

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- Subtract both sides by 7

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∴ the y-coordinate of point R is 3

* The coordinates of point R are (6 , 3)

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3 years ago